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80 results found for "x-axis" in Class 10.

Question Hard Mathematics Polynomials Irrational numbers and real numbers Class 10 Level 27

यदि (p(x)=x-2-5) है, तो ग्राफ (y=p(x)) (x)-अक्ष को कहाँ काटेगा?

If (p(x)=x-2-5), where will the graph (y=p(x)) cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. \(x=\pm\sqrt{5}\)

Step 1

Concept

On the (x)-axis, (p(x)=0), so \(x^2-5=0\) gives \(x=\pm\sqrt{5}\). The (x)-intercepts are the zeroes.

Step 2

Why this answer is correct

The correct answer is A. \(x=\pm\sqrt{5}\). On the (x)-axis, (p(x)=0), so \(x^2-5=0\) gives \(x=\pm\sqrt{5}\). The (x)-intercepts are the zeroes.

Step 3

Exam Tip

(x)-अक्ष पर (p(x)=0), इसलिए \(x^2-5=0\) से \(x=\pm\sqrt{5}\) है। ग्राफ में (x)-कट शून्यक होते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी बहुपद के ग्राफ में (x)-अक्ष के साथ प्रतिच्छेद बिंदुओं की संख्या (0), (1), या (2) हो सकती है और वह द्विघात है तो कौन सा कथन सबसे सही है?

If a quadratic polynomial graph may have (0), (1), or (2) intersection points with the (x)-axis, which statement is most correct?

Explanation opens after your attempt
Correct Answer

A. वास्तविक शून्यकों की संख्या प्रतिच्छेदों की संख्या के बराबर होती हैThe number of real zeroes equals the number of intersection points

Step 1

Concept

Geometrically each (x)-axis intersection gives one real zero. A quadratic may have (0), (1), or (2) real zeroes.

Step 2

Why this answer is correct

The correct answer is A. वास्तविक शून्यकों की संख्या प्रतिच्छेदों की संख्या के बराबर होती है / The number of real zeroes equals the number of intersection points. Geometrically each (x)-axis intersection gives one real zero. A quadratic may have (0), (1), or (2) real zeroes.

Step 3

Exam Tip

ज्यामितीय अर्थ में हर (x)-अक्ष प्रतिच्छेद एक वास्तविक शून्यक देता है। द्विघात में वास्तविक शून्यक (0), (1), या (2) हो सकते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-11x+30) का ग्राफ खींचा जाए तो (x)-अक्ष पर कौन से बिंदु मिलेंगे?

If the graph of (p(x)=x-2-11x+30) is drawn, which points will lie on the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((5,0)) और ((6,0))((5,0)) and ((6,0))

Step 1

Concept

(x-2-11x+30=(x-5)(x-6)). So the graph meets the (x)-axis at (x=5) and (x=6).

Step 2

Why this answer is correct

The correct answer is A. ((5,0)) और ((6,0)) / ((5,0)) and ((6,0)). (x-2-11x+30=(x-5)(x-6)). So the graph meets the (x)-axis at (x=5) and (x=6).

Step 3

Exam Tip

(x-2-11x+30=(x-5)(x-6)) है। इसलिए (x=5) और (x=6) पर ग्राफ (x)-अक्ष से मिलता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी ग्राफ का एक भाग (x)-अक्ष के ऊपर और दूसरा भाग नीचे है तथा बीच में ((9,0)) है तो ((9,0)) क्या दर्शाता है?

If one part of a graph is above the (x)-axis and another part is below it with ((9,0)) between them, what does ((9,0)) represent?

Explanation opens after your attempt
Correct Answer

A. (x=9) शून्यक है(x=9) is a zero

Step 1

Concept

((9,0)) lies on the (x)-axis so (p(9)=0). Moving from above to below also shows crossing.

Step 2

Why this answer is correct

The correct answer is A. (x=9) शून्यक है / (x=9) is a zero. ((9,0)) lies on the (x)-axis so (p(9)=0). Moving from above to below also shows crossing.

Step 3

Exam Tip

((9,0)) (x)-अक्ष पर है इसलिए (p(9)=0) है। ऊपर से नीचे जाना कटान को भी दिखाता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि बहुपद (p(x)=5(x+1)(x-2)(x-4)) है तो ग्राफ (x)-अक्ष को कितने अलग बिंदुओं पर काटेगा?

If (p(x)=5(x+1)(x-2)(x-4)), at how many distinct points will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. तीनThree

Step 1

Concept

The factors give zeroes (-1), (2), and (4). Three distinct zeroes give three distinct (x)-intercepts.

Step 2

Why this answer is correct

The correct answer is A. तीन / Three. The factors give zeroes (-1), (2), and (4). Three distinct zeroes give three distinct (x)-intercepts.

Step 3

Exam Tip

गुणनखंडों से शून्यक (-1), (2), और (4) हैं। तीन अलग शून्यक तीन अलग (x)-प्रतिच्छेद देते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

किसी द्विघात बहुपद का ग्राफ (x)-अक्ष को नहीं छूता। उसके विविक्त वास्तविक शून्यकों की संख्या क्या होगी?

A quadratic polynomial graph does not touch the (x)-axis. What is the number of distinct real zeroes?

Explanation opens after your attempt
Correct Answer

A. शून्यZero

Step 1

Concept

For a real zero the graph must meet the (x)-axis. No meeting means no real zero.

Step 2

Why this answer is correct

The correct answer is A. शून्य / Zero. For a real zero the graph must meet the (x)-axis. No meeting means no real zero.

Step 3

Exam Tip

वास्तविक शून्यक के लिए ग्राफ का (x)-अक्ष से मिलना जरूरी है। कोई मिलन नहीं तो कोई वास्तविक शून्यक नहीं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ (x)-अक्ष को (-7) और (-2) पर काटता है तो (p(x)=0) के हल कौन से होंगे?

If a graph cuts the (x)-axis at (-7) and (-2), what are the solutions of (p(x)=0)?

Explanation opens after your attempt
Correct Answer

A. (-7) और (-2)(-7) and (-2)

Step 1

Concept

The solutions of (p(x)=0) are where the graph meets the (x)-axis. So both given (x)-values are solutions.

Step 2

Why this answer is correct

The correct answer is A. (-7) और (-2) / (-7) and (-2). The solutions of (p(x)=0) are where the graph meets the (x)-axis. So both given (x)-values are solutions.

Step 3

Exam Tip

(p(x)=0) के हल वही हैं जहाँ ग्राफ (x)-अक्ष से मिलता है। इसलिए दिए गए दोनों (x)-मान हल हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=2x-2-8) है तो ग्राफ (x)-अक्ष को किन (x)-मानों पर काटेगा?

If (p(x)=2x-2-8), at which (x)-values will the graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. (-2) और (2)(-2) and (2)

Step 1

Concept

From \(2x^2-8=0\), \(x^2=4\). Hence the zeroes are (-2) and (2).

Step 2

Why this answer is correct

The correct answer is A. (-2) और (2) / (-2) and (2). From \(2x^2-8=0\), \(x^2=4\). Hence the zeroes are (-2) and (2).

Step 3

Exam Tip

\(2x^2-8=0\) से \(x^2=4\) मिलता है। इसलिए शून्यक (-2) और (2) हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2+6x+10) है तो ग्राफ का (x)-अक्ष से संबंध क्या होगा?

If (p(x)=x-2+6x+10), what will be the relation of the graph with the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. यह (x)-अक्ष को नहीं मिलेगाIt will not meet the (x)-axis

Step 1

Concept

(x-2+6x+10=(x+3)2+1), which is always positive. So there is no real zero.

Step 2

Why this answer is correct

The correct answer is A. यह (x)-अक्ष को नहीं मिलेगा / It will not meet the (x)-axis. (x-2+6x+10=(x+3)2+1), which is always positive. So there is no real zero.

Step 3

Exam Tip

(x-2+6x+10=(x+3)2+1) है जो हमेशा धनात्मक है। इसलिए कोई वास्तविक शून्यक नहीं है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी ग्राफ में (x)-अक्ष से प्रतिच्छेद (\(-\sqrt{3},0\)) है तो शून्यक क्या है?

If a graph has (x)-axis intersection (\(-\sqrt{3},0\)), what is the zero?

Explanation opens after your attempt
Correct Answer

A. \(-\sqrt{3}\)

Step 1

Concept

A zero is the (x)-coordinate of the intercept. An irrational number can also be a zero.

Step 2

Why this answer is correct

The correct answer is A. \(-\sqrt{3}\). A zero is the (x)-coordinate of the intercept. An irrational number can also be a zero.

Step 3

Exam Tip

शून्यक प्रतिच्छेद का (x)-निर्देशांक होता है। अपरिमेय संख्या भी शून्यक हो सकती है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि बहुपद का ग्राफ (x)-अक्ष को \(\frac{1}{2}\) पर छूता है तो कौन सा कथन सही है?

If the graph of a polynomial touches the (x)-axis at \(\frac{1}{2}\), which statement is correct?

Explanation opens after your attempt
Correct Answer

A. \(\frac{1}{2}\) शून्यक है\(\frac{1}{2}\) is a zero

Step 1

Concept

A zero can be a fraction and touching is enough. The key point is (p\left\(\frac{1}{2}\right\)=0).

Step 2

Why this answer is correct

The correct answer is A. \(\frac{1}{2}\) शून्यक है / \(\frac{1}{2}\) is a zero. A zero can be a fraction and touching is enough. The key point is (p\left\(\frac{1}{2}\right\)=0).

Step 3

Exam Tip

शून्यक भिन्न भी हो सकता है और छूना पर्याप्त है। जरूरी बात (p\left\(\frac{1}{2}\right\)=0) है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

किसी बहुपद का ग्राफ (x)-अक्ष को केवल सम संख्याओं (-4), (2), और (8) पर काटता है। शून्यकों की संख्या क्या है?

A polynomial graph cuts the (x)-axis only at the even numbers (-4), (2), and (8). What is the number of zeroes?

Explanation opens after your attempt
Correct Answer

A. तीनThree

Step 1

Concept

Three distinct (x)-intercepts give three zeroes. Count by intersections not by the type of numbers.

Step 2

Why this answer is correct

The correct answer is A. तीन / Three. Three distinct (x)-intercepts give three zeroes. Count by intersections not by the type of numbers.

Step 3

Exam Tip

तीन अलग (x)-प्रतिच्छेद तीन शून्यक देते हैं। संख्या के प्रकार से नहीं बल्कि प्रतिच्छेदों से गिनें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-2x-8) है तो ग्राफ (x)-अक्ष को किन बिंदुओं पर मिलेगा?

If (p(x)=x-2-2x-8), at which points will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-2,0)) और ((4,0))((-2,0)) and ((4,0))

Step 1

Concept

(x-2-2x-8=(x-4)(x+2)). So the graph meets the (x)-axis at (x=4) and (x=-2).

Step 2

Why this answer is correct

The correct answer is A. ((-2,0)) और ((4,0)) / ((-2,0)) and ((4,0)). (x-2-2x-8=(x-4)(x+2)). So the graph meets the (x)-axis at (x=4) and (x=-2).

Step 3

Exam Tip

(x-2-2x-8=(x-4)(x+2)) है। अतः (x=4) और (x=-2) पर ग्राफ (x)-अक्ष से मिलेगा।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ (x)-अक्ष को (2.5) पर काटता है तो सही शून्यक कौन सा है?

If a graph cuts the (x)-axis at (2.5), which is the correct zero?

Explanation opens after your attempt
Correct Answer

A. (2.5)

Step 1

Concept

A zero is a number not a point. The point is ((2.5,0)) but the zero is (2.5).

Step 2

Why this answer is correct

The correct answer is A. (2.5). A zero is a number not a point. The point is ((2.5,0)) but the zero is (2.5).

Step 3

Exam Tip

शून्यक संख्या होता है बिंदु नहीं। बिंदु ((2.5,0)) है लेकिन शून्यक (2.5) है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी द्विघात का ग्राफ (x)-अक्ष को ((m,0)) और ((n,0)) पर काटता है तो कौन सा बहुपद उन्हीं शून्यकों वाला हो सकता है?

If a quadratic graph cuts the (x)-axis at ((m,0)) and ((n,0)), which polynomial can have the same zeroes?

Explanation opens after your attempt
Correct Answer

A. (k(x-m)(x-n)), जहाँ \(k\neq0\)(k(x-m)(x-n)), where \(k\neq0\)

Step 1

Concept

For zeroes (m) and (n), the factors are ((x-m)) and ((x-n)). A non-zero multiplier does not change zeroes.

Step 2

Why this answer is correct

The correct answer is A. (k(x-m)(x-n)), जहाँ \(k\neq0\) / (k(x-m)(x-n)), where \(k\neq0\). For zeroes (m) and (n), the factors are ((x-m)) and ((x-n)). A non-zero multiplier does not change zeroes.

Step 3

Exam Tip

शून्यक (m) और (n) के लिए गुणनखंड ((x-m)) और ((x-n)) होते हैं। गैर शून्य गुणक शून्यक नहीं बदलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=4x) है तो ग्राफ और (x)-अक्ष का प्रतिच्छेद कौन सा है?

If (p(x)=4x), what is the intersection of the graph and the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((0,0))

Step 1

Concept

Solving (4x=0) gives (x=0). So the graph cuts the (x)-axis at the origin.

Step 2

Why this answer is correct

The correct answer is A. ((0,0)). Solving (4x=0) gives (x=0). So the graph cuts the (x)-axis at the origin.

Step 3

Exam Tip

(4x=0) से (x=0) मिलता है। इसलिए ग्राफ मूल बिंदु पर (x)-अक्ष को काटता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

ग्राफ (x)-अक्ष को काटता नहीं बल्कि (y=2) रेखा को दो बार काटता है। शून्यकों के बारे में क्या निश्चित है?

The graph does not cut the (x)-axis but cuts the line (y=2) twice. What is certain about zeroes?

Explanation opens after your attempt
Correct Answer

A. दिए गए आधार पर कोई शून्यक नहीं दिखताNo zero is shown from the given data

Step 1

Concept

Zeroes are linked only with the (x)-axis where (y=0). Intersections with (y=2) do not show zeroes.

Step 2

Why this answer is correct

The correct answer is A. दिए गए आधार पर कोई शून्यक नहीं दिखता / No zero is shown from the given data. Zeroes are linked only with the (x)-axis where (y=0). Intersections with (y=2) do not show zeroes.

Step 3

Exam Tip

शून्यक केवल (x)-अक्ष यानी (y=0) से जुड़े होते हैं। (y=2) से प्रतिच्छेद शून्यक नहीं बताता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

द्विघात (p(x)=x-2+2x-15) का ग्राफ (x)-अक्ष को किन (x)-मानों पर काटेगा?

At which (x)-values will the graph of (p(x)=x-2+2x-15) cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. (3) और (-5)(3) and (-5)

Step 1

Concept

(x-2+2x-15=(x+5)(x-3)). Zeroes are the (x)-values of (x)-axis intersections.

Step 2

Why this answer is correct

The correct answer is A. (3) और (-5) / (3) and (-5). (x-2+2x-15=(x+5)(x-3)). Zeroes are the (x)-values of (x)-axis intersections.

Step 3

Exam Tip

(x-2+2x-15=(x+5)(x-3)) है। शून्यक (x)-अक्ष पर कटान के (x)-मान होते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

किसी बहुपद का ग्राफ (x)-अक्ष को ((r,0)) पर मिलता है। कौन सा कथन हमेशा सत्य है?

A polynomial graph meets the (x)-axis at ((r,0)). Which statement is always true?

Explanation opens after your attempt
Correct Answer

A. (p(r)=0)

Step 1

Concept

((r,0)) means (y=0) when (x=r). This is the definition of a zero.

Step 2

Why this answer is correct

The correct answer is A. (p(r)=0). ((r,0)) means (y=0) when (x=r). This is the definition of a zero.

Step 3

Exam Tip

((r,0)) का अर्थ (x=r) पर (y=0) है। यही शून्यक की परिभाषा है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ केवल (x= -6) पर (x)-अक्ष को काटता है और बाकी जगह अक्ष से दूर रहता है तो शून्यक क्या है?

If a graph cuts the (x)-axis only at (x=-6) and stays away from the axis elsewhere, what is the zero?

Explanation opens after your attempt
Correct Answer

A. (-6)

Step 1

Concept

Only at (x=-6) the value of (y) is (0). Hence the zero is (-6).

Step 2

Why this answer is correct

The correct answer is A. (-6). Only at (x=-6) the value of (y) is (0). Hence the zero is (-6).

Step 3

Exam Tip

केवल (x=-6) पर (y=0) है। इसलिए शून्यक (-6) है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि बहुपद का ग्राफ (x)-अक्ष को चार अलग बिंदुओं पर काटता है तो डिग्री के बारे में कौन सा कथन सही है?

If the graph of a polynomial cuts the (x)-axis at four distinct points, which statement about its degree is correct?

Explanation opens after your attempt
Correct Answer

A. डिग्री कम से कम (4) होगीThe degree is at least (4)

Step 1

Concept

Four distinct real zeroes need degree at least four. The number of zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is A. डिग्री कम से कम (4) होगी / The degree is at least (4). Four distinct real zeroes need degree at least four. The number of zeroes cannot exceed the degree.

Step 3

Exam Tip

चार अलग वास्तविक शून्यक के लिए डिग्री कम से कम चार चाहिए। शून्यकों की संख्या डिग्री से अधिक नहीं होती।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-6x+9) है तो ग्राफ (x)-अक्ष को कैसे मिलेगा?

If (p(x)=x-2-6x+9), how will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((3,0)) पर छुएगाIt will touch at ((3,0))

Step 1

Concept

(x-2-6x+9=(x-3)2), so (3) is a repeated zero. A repeated zero appears as touching on the graph.

Step 2

Why this answer is correct

The correct answer is A. ((3,0)) पर छुएगा / It will touch at ((3,0)). (x-2-6x+9=(x-3)2), so (3) is a repeated zero. A repeated zero appears as touching on the graph.

Step 3

Exam Tip

(x-2-6x+9=(x-3)2) है इसलिए शून्यक (3) दोहराया है। दोहराया शून्यक ग्राफ में छूने जैसा दिखता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

ग्राफ (x)-अक्ष को ((-2,0)), ((0,0)), और ((5,0)) पर काटता है। कौन सा कथन सही है?

The graph cuts the (x)-axis at ((-2,0)), ((0,0)), and ((5,0)). Which statement is correct?

Explanation opens after your attempt
Correct Answer

A. शून्यक (-2,0,5) हैंThe zeroes are (-2,0,5)

Step 1

Concept

The origin also lies on the (x)-axis so (0) is also a zero. Write the (x)-values of all intercepts.

Step 2

Why this answer is correct

The correct answer is A. शून्यक (-2,0,5) हैं / The zeroes are (-2,0,5). The origin also lies on the (x)-axis so (0) is also a zero. Write the (x)-values of all intercepts.

Step 3

Exam Tip

मूल बिंदु भी (x)-अक्ष पर है इसलिए (0) भी शून्यक है। सभी (x)-प्रतिच्छेदों के (x)-मान लिखें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि परवलय नीचे की ओर खुलता है और (x)-अक्ष को दो बिंदुओं पर काटता है तो वास्तविक शून्यकों की संख्या क्या होगी?

If a parabola opens downward and cuts the (x)-axis at two points, how many real zeroes will it have?

Explanation opens after your attempt
Correct Answer

A. दोTwo

Step 1

Concept

The opening direction alone does not decide the number of zeroes. Two intersections clearly give two real zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो / Two. The opening direction alone does not decide the number of zeroes. Two intersections clearly give two real zeroes.

Step 3

Exam Tip

खुलने की दिशा शून्यकों की संख्या अकेले तय नहीं करती। दो कटान स्पष्ट रूप से दो वास्तविक शून्यक देते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ (x)-अक्ष को (a) और (b) पर काटता है जहाँ \(a\neq b\) है तो (p(a)) और (p(b)) के मान क्या होंगे?

If a graph cuts the (x)-axis at (a) and (b) where \(a\neq b\), what are the values of (p(a)) and (p(b))?

Explanation opens after your attempt
Correct Answer

A. दोनों (0)Both are (0)

Step 1

Concept

Meeting the (x)-axis means the polynomial value is (0). Hence (p(x)=0) at both places.

Step 2

Why this answer is correct

The correct answer is A. दोनों (0) / Both are (0). Meeting the (x)-axis means the polynomial value is (0). Hence (p(x)=0) at both places.

Step 3

Exam Tip

(x)-अक्ष पर मिलने का अर्थ बहुपद का मान (0) है। इसलिए दोनों स्थानों पर (p(x)=0) होगा।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी द्विघात बहुपद के ग्राफ का शीर्ष (x)-अक्ष पर है तो वास्तविक शून्यकों के बारे में क्या सही है?

If the vertex of a quadratic polynomial graph lies on the (x)-axis, what is correct about its real zeroes?

Explanation opens after your attempt
Correct Answer

A. दोनों वास्तविक शून्यक समान हैंBoth real zeroes are equal

Step 1

Concept

When the vertex lies on the (x)-axis, the parabola touches the axis at one point. Hence the zeroes are equal.

Step 2

Why this answer is correct

The correct answer is A. दोनों वास्तविक शून्यक समान हैं / Both real zeroes are equal. When the vertex lies on the (x)-axis, the parabola touches the axis at one point. Hence the zeroes are equal.

Step 3

Exam Tip

शीर्ष (x)-अक्ष पर होने पर परवलय अक्ष को एक ही बिंदु पर छूता है। इसलिए शून्यक समान होते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=(x+2)2) है तो ग्राफ (x)-अक्ष के साथ कैसा व्यवहार करेगा?

If (p(x)=(x+2)2), how will its graph behave with the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-2,0)) पर छुएगाIt will touch at ((-2,0))

Step 1

Concept

The repeated factor gives equal zero (-2). A quadratic parabola generally touches the (x)-axis at such a point.

Step 2

Why this answer is correct

The correct answer is A. ((-2,0)) पर छुएगा / It will touch at ((-2,0)). The repeated factor gives equal zero (-2). A quadratic parabola generally touches the (x)-axis at such a point.

Step 3

Exam Tip

दोहराए गुणनखंड से समान शून्यक (-2) मिलता है। द्विघात परवलय ऐसे बिंदु पर सामान्यतः (x)-अक्ष को छूता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

एक बहुपद का ग्राफ (x)-अक्ष को ((-5,0)) पर काटता और ((2,0)) पर छूता है। उसके वास्तविक शून्यकों की संख्या क्या है?

A polynomial graph cuts the (x)-axis at ((-5,0)) and touches it at ((2,0)). What is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

A. दोTwo

Step 1

Concept

The two different (x)-values (-5) and (2) are zeroes. Touching also gives a zero.

Step 2

Why this answer is correct

The correct answer is A. दो / Two. The two different (x)-values (-5) and (2) are zeroes. Touching also gives a zero.

Step 3

Exam Tip

दो अलग (x)-मान (-5) और (2) शून्यक हैं। छूना भी शून्यक देता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि द्विघात ग्राफ (x)-अक्ष को दो अलग बिंदुओं पर काटता है तो उसके वास्तविक शून्यक कैसे होंगे?

If a quadratic graph cuts the (x)-axis at two distinct points, what kind of real zeroes does it have?

Explanation opens after your attempt
Correct Answer

A. दो भिन्न वास्तविक शून्यकTwo distinct real zeroes

Step 1

Concept

Two separate intersections give two distinct real zeroes. Different (x)-intercepts mean different zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो भिन्न वास्तविक शून्यक / Two distinct real zeroes. Two separate intersections give two distinct real zeroes. Different (x)-intercepts mean different zeroes.

Step 3

Exam Tip

दो अलग कटान दो अलग वास्तविक शून्यक देते हैं। ग्राफ में अलग (x)-प्रतिच्छेद अलग शून्यक होते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

किसी बहुपद का ग्राफ (x)-अक्ष से ((7,0)) पर मिलता है। उस बिंदु पर (p(x)) का मान क्या होगा?

A polynomial graph meets the (x)-axis at ((7,0)). What is the value of (p(x)) at that point?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

Every point on the (x)-axis has (y=0). Therefore (p(7)=0).

Step 2

Why this answer is correct

The correct answer is A. (0). Every point on the (x)-axis has (y=0). Therefore (p(7)=0).

Step 3

Exam Tip

(x)-अक्ष पर हर बिंदु का (y)-मान (0) होता है। इसलिए (p(7)=0) होगा।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ (x)-अक्ष को ((0,0)) पर काटता है तो कौन सा निष्कर्ष निश्चित है?

If a graph cuts the (x)-axis at ((0,0)), which conclusion is certain?

Explanation opens after your attempt
Correct Answer

A. (0) बहुपद का शून्यक है(0) is a zero of the polynomial

Step 1

Concept

Meeting at the origin shows (p(0)=0). It only confirms that (0) is a zero.

Step 2

Why this answer is correct

The correct answer is A. (0) बहुपद का शून्यक है / (0) is a zero of the polynomial. Meeting at the origin shows (p(0)=0). It only confirms that (0) is a zero.

Step 3

Exam Tip

मूल बिंदु पर मिलना (p(0)=0) बताता है। इससे केवल (0) का शून्यक होना निश्चित है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

एक ग्राफ (x)-अक्ष को तीन बार काटता है। उस बहुपद की न्यूनतम संभावित डिग्री क्या हो सकती है?

A graph cuts the (x)-axis three times. What can be the minimum possible degree of that polynomial?

Explanation opens after your attempt
Correct Answer

A. (3)

Step 1

Concept

The number of real zeroes cannot exceed the degree of the polynomial. Three crossings need minimum degree (3).

Step 2

Why this answer is correct

The correct answer is A. (3). The number of real zeroes cannot exceed the degree of the polynomial. Three crossings need minimum degree (3).

Step 3

Exam Tip

किसी बहुपद के वास्तविक शून्यकों की संख्या उसकी डिग्री से अधिक नहीं हो सकती। तीन कटान के लिए न्यूनतम डिग्री (3) है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी घन बहुपद का ग्राफ (x)-अक्ष को (-1) पर काटता है और (2) पर छूता है तो अलग-अलग वास्तविक शून्यक कितने हैं?

If the graph of a cubic polynomial crosses the (x)-axis at (-1) and touches it at (2), how many distinct real zeroes are there?

Explanation opens after your attempt
Correct Answer

A. दोTwo

Step 1

Concept

The distinct zeroes are only (-1) and (2). A touching zero may be repeated but its distinct value is counted once.

Step 2

Why this answer is correct

The correct answer is A. दो / Two. The distinct zeroes are only (-1) and (2). A touching zero may be repeated but its distinct value is counted once.

Step 3

Exam Tip

अलग-अलग शून्यक केवल (-1) और (2) हैं। छूने वाला शून्यक दोहराया हो सकता है पर अलग मान एक ही गिना जाता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि परवलय (x)-अक्ष से ऊपर ही रहता है और उसे कहीं नहीं छूता तो वास्तविक शून्यकों की संख्या क्या होगी?

If a parabola remains entirely above the (x)-axis and never touches it, how many real zeroes does it have?

Explanation opens after your attempt
Correct Answer

A. शून्यZero

Step 1

Concept

If the graph does not meet the (x)-axis there is no real zero. Only points with (y=0) are counted.

Step 2

Why this answer is correct

The correct answer is A. शून्य / Zero. If the graph does not meet the (x)-axis there is no real zero. Only points with (y=0) are counted.

Step 3

Exam Tip

ग्राफ (x)-अक्ष से न मिले तो वास्तविक शून्यक नहीं होता। केवल (y=0) वाले बिंदु गिने जाते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

एक द्विघात बहुपद का ग्राफ (x)-अक्ष को एक ही बिंदु ((4,0)) पर छूता है। उसके शून्यक कैसे होंगे?

The graph of a quadratic polynomial touches the (x)-axis at only one point ((4,0)). What type of zeroes does it have?

Explanation opens after your attempt
Correct Answer

A. बराबर शून्यक (4) और (4)Equal zeroes (4) and (4)

Step 1

Concept

When a quadratic graph touches at one point its two zeroes are equal. Treat it as a repeated zero in exams.

Step 2

Why this answer is correct

The correct answer is A. बराबर शून्यक (4) और (4) / Equal zeroes (4) and (4). When a quadratic graph touches at one point its two zeroes are equal. Treat it as a repeated zero in exams.

Step 3

Exam Tip

द्विघात ग्राफ एक बिंदु पर छूता है तो दोनों शून्यक समान होते हैं। परीक्षा में इसे दोहराया शून्यक मानें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-9) है तो इसका ग्राफ (x)-अक्ष को किन बिंदुओं पर काटेगा?

If (p(x)=x-2-9), at which points will its graph cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-3,0)) और ((3,0))((-3,0)) and ((3,0))

Step 1

Concept

Solving \(x^2-9=0\) gives \(x=\pm3\). Zeroes appear on the (x)-axis as ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)) और ((3,0)) / ((-3,0)) and ((3,0)). Solving \(x^2-9=0\) gives \(x=\pm3\). Zeroes appear on the (x)-axis as ((x,0)).

Step 3

Exam Tip

\(x^2-9=0\) से \(x=\pm3\) मिलता है। शून्यक हमेशा (x)-अक्ष पर ((x,0)) रूप में दिखते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी रैखिक बहुपद का ग्राफ (x)-अक्ष के समानांतर है और (x)-अक्ष पर नहीं है तो उसके शून्यक कितने होंगे?

If the graph of a linear polynomial is parallel to the (x)-axis and not on the (x)-axis, how many zeroes will it have?

Explanation opens after your attempt
Correct Answer

A. शून्यZero

Step 1

Concept

Such a line never meets the (x)-axis so it has no zero. First check the intercept from the graph.

Step 2

Why this answer is correct

The correct answer is A. शून्य / Zero. Such a line never meets the (x)-axis so it has no zero. First check the intercept from the graph.

Step 3

Exam Tip

ऐसी रेखा कभी (x)-अक्ष से नहीं मिलती इसलिए कोई शून्यक नहीं होता। ग्राफ से पहले प्रतिच्छेद देखें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

किसी बहुपद के ग्राफ का (x)-अक्ष को केवल छूना लेकिन पार न करना क्या दर्शाता है?

What does it indicate when the graph of a polynomial only touches the (x)-axis but does not cross it?

Explanation opens after your attempt
Correct Answer

A. वह बिंदु भी शून्यक हैThat point is also a zero

Step 1

Concept

For a zero it is enough that (y=0). Touching or crossing both give zeroes.

Step 2

Why this answer is correct

The correct answer is A. वह बिंदु भी शून्यक है / That point is also a zero. For a zero it is enough that (y=0). Touching or crossing both give zeroes.

Step 3

Exam Tip

शून्यक के लिए (y=0) होना पर्याप्त है। छूना या काटना दोनों शून्यक देते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि किसी द्विघात बहुपद (p(x)) का ग्राफ (x)-अक्ष को (-2) और (5) पर काटता है तो उसके शून्यकों की संख्या क्या है?

If the graph of a quadratic polynomial (p(x)) cuts the (x)-axis at (-2) and (5), how many zeroes does it have?

Explanation opens after your attempt
Correct Answer

A. दोTwo

Step 1

Concept

A zero occurs where the graph meets the (x)-axis. In exams count the (x)-intercepts.

Step 2

Why this answer is correct

The correct answer is A. दो / Two. A zero occurs where the graph meets the (x)-axis. In exams count the (x)-intercepts.

Step 3

Exam Tip

ग्राफ जहाँ (x)-अक्ष को काटता है वही शून्यक होता है। परीक्षा में काटने वाले बिंदुओं की संख्या गिनें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि किसी ग्राफ के (x)-अक्ष कटान ((-4,0)), ((6,0)), ((16,0)) हैं, तो इनके शून्यकों का माध्य क्या है?

If the (x)-axis intersections of a graph are ((-4,0)), ((6,0)), ((16,0)), what is the mean of their zeroes?

Explanation opens after your attempt
Correct Answer

A. (6)

Step 1

Concept

The mean is \(\frac{-4+6+16}{3}=6\). Tip: first read the (x)-values from intersection points.

Step 2

Why this answer is correct

The correct answer is A. (6). The mean is \(\frac{-4+6+16}{3}=6\). Tip: first read the (x)-values from intersection points.

Step 3

Exam Tip

माध्य \(\frac{-4+6+16}{3}=6\) है। टिप: पहले कटान बिंदुओं से (x)-मान पढ़ें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=5x-2+20x+23) है, तो ग्राफ (x)-अक्ष के सापेक्ष कैसा होगा?

If (p(x)=5x-2+20x+23), how will the graph be with respect to the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. नहीं काटेगाIt will not cut

Step 1

Concept

The discriminant is (400-460=-60), so there are no real zeroes. Tip: with negative discriminant a parabola does not meet the (x)-axis.

Step 2

Why this answer is correct

The correct answer is C. नहीं काटेगा / It will not cut. The discriminant is (400-460=-60), so there are no real zeroes. Tip: with negative discriminant a parabola does not meet the (x)-axis.

Step 3

Exam Tip

विविक्तकर (400-460=-60) है, इसलिए वास्तविक शून्यक नहीं हैं। टिप: ऋणात्मक विविक्तकर पर परवलय (x)-अक्ष से नहीं मिलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2+gx+g-2) और \(g\neq0\) है, तो ग्राफ (x)-अक्ष को क्यों नहीं काटेगा?

If (p(x)=x-2+gx+g-2) and \(g\neq0\), why will the graph not cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. क्योंकि इसका विविक्तकर ऋणात्मक हैBecause its discriminant is negative

Step 1

Concept

The discriminant is \(g^2-4g^2=-3g^2<0\), so there are no real zeroes. Tip: a negative discriminant means no (x)-axis intersection.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि इसका विविक्तकर ऋणात्मक है / Because its discriminant is negative. The discriminant is \(g^2-4g^2=-3g^2<0\), so there are no real zeroes. Tip: a negative discriminant means no (x)-axis intersection.

Step 3

Exam Tip

विविक्तकर \(g^2-4g^2=-3g^2<0\) है, इसलिए वास्तविक शून्यक नहीं हैं। टिप: ऋणात्मक विविक्तकर का अर्थ (x)-अक्ष कटान नहीं है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=11(x+5)2(x-14)) है, तो ग्राफ कितने अलग बिंदुओं पर (x)-अक्ष से मिलेगा और कौन सा बिंदु स्पर्श होगा?

If (p(x)=11(x+5)2(x-14)), at how many distinct points will the graph meet the (x)-axis and which point will be a touching point?

Explanation opens after your attempt
Correct Answer

A. दो बिंदु, (x=-5) पर स्पर्शTwo points, touching at (x=-5)

Step 1

Concept

The zeroes are (-5) and (14), and ((x+5)2) causes touching at (-5). Tip: the outside (11) does not change the zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो बिंदु, (x=-5) पर स्पर्श / Two points, touching at (x=-5). The zeroes are (-5) and (14), and ((x+5)2) causes touching at (-5). Tip: the outside (11) does not change the zeroes.

Step 3

Exam Tip

शून्यक (-5) और (14) हैं तथा ((x+5)2) के कारण (-5) पर स्पर्श है। टिप: बाहरी (11) शून्यक नहीं बदलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x)-अक्ष को ((-10,0)) और ((22,0)) पर काटता है, तो (y)-अक्ष से समान दूरी वाले शून्यक बनाने के लिए कौन सा परिवर्तन चाहिए?

If a graph cuts the (x)-axis at ((-10,0)) and ((22,0)), what change is needed to make the zeroes equally distant from the (y)-axis?

Explanation opens after your attempt
Correct Answer

A. (22) को (10) करना होगा(22) must be changed to (10)

Step 1

Concept

For equal distance from the (y)-axis, zeroes should be opposites, so (10) is needed with (-10). Tip: symmetric zeroes are (a) and (-a).

Step 2

Why this answer is correct

The correct answer is A. (22) को (10) करना होगा / (22) must be changed to (10). For equal distance from the (y)-axis, zeroes should be opposites, so (10) is needed with (-10). Tip: symmetric zeroes are (a) and (-a).

Step 3

Exam Tip

(y)-अक्ष से समान दूरी के लिए शून्यक विपरीत होने चाहिए, इसलिए (-10) के साथ (10) चाहिए। टिप: सममित शून्यक (a) और (-a) होते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-hx) है, तो ग्राफ के (x)-अक्ष कटान कौन से होंगे?

If (p(x)=x-2-hx), what will be the (x)-axis intersections of the graph?

Explanation opens after your attempt
Correct Answer

A. ((0,0)) और ((h,0))((0,0)) and ((h,0))

Step 1

Concept

(x-2-hx=x(x-h)), so the zeroes are (0) and (h). Tip: factor out the common (x).

Step 2

Why this answer is correct

The correct answer is A. ((0,0)) और ((h,0)) / ((0,0)) and ((h,0)). (x-2-hx=x(x-h)), so the zeroes are (0) and (h). Tip: factor out the common (x).

Step 3

Exam Tip

(x-2-hx=x(x-h)) है, इसलिए शून्यक (0) और (h) हैं। टिप: सामान्य (x) गुणनखंड निकालें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ के (x)-अक्ष कटान ((0,0)), ((g,0)), ((-g,0)) हैं, जहाँ \(g\neq0\), तो शून्यकों का योग क्या होगा?

If the (x)-axis intersections of a graph are ((0,0)), ((g,0)), ((-g,0)), where \(g\neq0\), what will be the sum of the zeroes?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

The zeroes are (0), (g), (-g), so the sum is (0). Tip: opposite numbers cancel each other.

Step 2

Why this answer is correct

The correct answer is A. (0). The zeroes are (0), (g), (-g), so the sum is (0). Tip: opposite numbers cancel each other.

Step 3

Exam Tip

शून्यक (0), (g), (-g) हैं, इसलिए योग (0) होगा। टिप: विपरीत संख्याएँ एक-दूसरे को काट देती हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x)-अक्ष को ((11,0)) पर छूता है और ((-6,0)) पर काटता है, तो शून्यकों का गुणनफल क्या है?

If a graph touches the (x)-axis at ((11,0)) and crosses it at ((-6,0)), what is the product of the zeroes?

Explanation opens after your attempt
Correct Answer

A. (-66)

Step 1

Concept

The zeroes are (11) and (-6), so the product is (-66). Tip: a touching point is also a zero.

Step 2

Why this answer is correct

The correct answer is A. (-66). The zeroes are (11) and (-6), so the product is (-66). Tip: a touching point is also a zero.

Step 3

Exam Tip

शून्यक (11) और (-6) हैं, इसलिए गुणनफल (-66) है। टिप: स्पर्श बिंदु भी शून्यक होता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=-(x-11)(x+13)) है, तो (x<-13) के लिए ग्राफ (x)-अक्ष के किस ओर होगा?

If (p(x)=-(x-11)(x+13)), on which side of the (x)-axis will the graph lie for (x<-13)?

Explanation opens after your attempt
Correct Answer

B. नीचेBelow

Step 1

Concept

For (x<-13), both factors are negative and the outside negative makes the value negative. Tip: check factor signs first.

Step 2

Why this answer is correct

The correct answer is B. नीचे / Below. For (x<-13), both factors are negative and the outside negative makes the value negative. Tip: check factor signs first.

Step 3

Exam Tip

(x<-13) पर दोनों कारक ऋणात्मक हैं और बाहर का ऋण चिन्ह मान को ऋणात्मक बनाता है। टिप: पहले कारकों का चिह्न देखें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=6x-2-72x+216) है, तो ग्राफ (x)-अक्ष से कैसे मिलेगा?

If (p(x)=6x-2-72x+216), how will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. (x=6) पर स्पर्श करेगाIt will touch at (x=6)

Step 1

Concept

(6x-2-72x+216=6(x-6)2), so it touches at (x=6). Tip: the outside (6) does not change the zero.

Step 2

Why this answer is correct

The correct answer is A. (x=6) पर स्पर्श करेगा / It will touch at (x=6). (6x-2-72x+216=6(x-6)2), so it touches at (x=6). Tip: the outside (6) does not change the zero.

Step 3

Exam Tip

(6x-2-72x+216=6(x-6)2) है, इसलिए (x=6) पर स्पर्श होगा। टिप: बाहरी (6) शून्यक नहीं बदलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x)-अक्ष को ((10,0)) और ((26,0)) पर काटता है, तो इनके बीच (x=18) की स्थिति क्या है?

If a graph cuts the (x)-axis at ((10,0)) and ((26,0)), what is the position of (x=18) between them?

Explanation opens after your attempt
Correct Answer

A. यह दोनों शून्यकों का मध्य हैIt is the midpoint of the two zeroes

Step 1

Concept

\(18=\frac{10+26}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint value need not be a zero.

Step 2

Why this answer is correct

The correct answer is A. यह दोनों शून्यकों का मध्य है / It is the midpoint of the two zeroes. \(18=\frac{10+26}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint value need not be a zero.

Step 3

Exam Tip

\(18=\frac{10+26}{2}\), इसलिए यह दोनों शून्यकों का मध्य है। टिप: मध्य मान का शून्यक होना जरूरी नहीं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि कोई बहुपद (x)-अक्ष को आठ अलग बिंदुओं पर काटता है, तो न्यूनतम संभावित घात क्या होगी?

If a polynomial cuts the (x)-axis at eight distinct points, what is the minimum possible degree?

Explanation opens after your attempt
Correct Answer

C. (8)

Step 1

Concept

For eight distinct real zeroes, the degree must be at least (8). Tip: the number of distinct zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. (8). For eight distinct real zeroes, the degree must be at least (8). Tip: the number of distinct zeroes cannot exceed the degree.

Step 3

Exam Tip

आठ अलग वास्तविक शून्यकों के लिए घात कम से कम (8) होनी चाहिए। टिप: अलग शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-4-1296) है, तो वास्तविक (x)-अक्ष कटान कौन से हैं?

If (p(x)=x-4-1296), what are the real (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. ((-6,0)) और ((6,0))((-6,0)) and ((6,0))

Step 1

Concept

(x-4-1296=\(x^2-36\)\(x^2+36\)), and the real zeroes are only \(\pm6\). Tip: \(x^2+36\) gives no real zero.

Step 2

Why this answer is correct

The correct answer is A. ((-6,0)) और ((6,0)) / ((-6,0)) and ((6,0)). (x-4-1296=\(x^2-36\)\(x^2+36\)), and the real zeroes are only \(\pm6\). Tip: \(x^2+36\) gives no real zero.

Step 3

Exam Tip

(x-4-1296=\(x^2-36\)\(x^2+36\)) है और वास्तविक शून्यक केवल \(\pm6\) हैं। टिप: \(x^2+36\) वास्तविक शून्यक नहीं देता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

परवलय (x)-अक्ष को दो बिंदुओं पर काटता है और (y)-अक्ष को ((0,25)) पर काटता है। वास्तविक शून्यकों की संख्या क्या है?

A parabola cuts the (x)-axis at two points and cuts the (y)-axis at ((0,25)). What is the number of real zeroes?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,25)) does not show a zero.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Real zeroes are counted from (x)-axis intersections, not from the (y)-axis intercept. Tip: ((0,25)) does not show a zero.

Step 3

Exam Tip

वास्तविक शून्यक (x)-अक्ष कटानों से गिने जाते हैं, (y)-अक्ष कटान से नहीं। टिप: ((0,25)) शून्यक नहीं बताता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2+px+q) का ग्राफ ((-8,0)) और ((5,0)) पर (x)-अक्ष को काटता है, तो (p) और (q) क्या होंगे?

If the graph of (p(x)=x-2+px+q) cuts the (x)-axis at ((-8,0)) and ((5,0)), what will (p) and (q) be?

Explanation opens after your attempt
Correct Answer

A. (p=3, q=-40)

Step 1

Concept

The zeroes are (-8) and (5), so the polynomial is ((x+8)(x-5)=x-2+3x-40). Tip: form factors from intersections.

Step 2

Why this answer is correct

The correct answer is A. (p=3, q=-40). The zeroes are (-8) and (5), so the polynomial is ((x+8)(x-5)=x-2+3x-40). Tip: form factors from intersections.

Step 3

Exam Tip

शून्यक (-8) और (5) हैं, इसलिए बहुपद ((x+8)(x-5)=x-2+3x-40) है। टिप: कटान से गुणनखंड बनाएं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (x)-अक्ष से मिलने वाले बिंदु ((-11,0)), ((-11,0)), ((4,0)), ((4,0)) लिखे हैं, तो अलग वास्तविक शून्यक कितने हैं?

If the points meeting the (x)-axis are written as ((-11,0)), ((-11,0)), ((4,0)), ((4,0)), how many distinct real zeroes are there?

Explanation opens after your attempt
Correct Answer

B. दोTwo

Step 1

Concept

Repeated points give the same (x)-values, so the distinct zeroes are (-11) and (4). Tip: count the same (x)-value once.

Step 2

Why this answer is correct

The correct answer is B. दो / Two. Repeated points give the same (x)-values, so the distinct zeroes are (-11) and (4). Tip: count the same (x)-value once.

Step 3

Exam Tip

दोहराए बिंदु समान (x)-मान देते हैं, इसलिए अलग शून्यक (-11) और (4) हैं। टिप: समान (x)-मान को एक बार गिनें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=36x-2-49) है, तो ग्राफ के (x)-अक्ष कटान कौन से हैं?

If (p(x)=36x-2-49), what are the (x)-axis intersections of the graph?

Explanation opens after your attempt
Correct Answer

A. (\left\(\frac{7}{6},0\right\)) और (\left\(-\frac{7}{6},0\right\))(\left\(\frac{7}{6},0\right\)) and (\left\(-\frac{7}{6},0\right\))

Step 1

Concept

From \(36x^2-49=0\), \(x=\pm\frac{7}{6}\). Tip: treat \(36x^2\) as ((6x)2).

Step 2

Why this answer is correct

The correct answer is A. (\left\(\frac{7}{6},0\right\)) और (\left\(-\frac{7}{6},0\right\)) / (\left\(\frac{7}{6},0\right\)) and (\left\(-\frac{7}{6},0\right\)). From \(36x^2-49=0\), \(x=\pm\frac{7}{6}\). Tip: treat \(36x^2\) as ((6x)2).

Step 3

Exam Tip

\(36x^2-49=0\) से \(x=\pm\frac{7}{6}\) मिलता है। टिप: \(36x^2\) को ((6x)2) समझें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x=-12) और (x=12) पर (x)-अक्ष को काटता है, तो शून्यकों का गुणनफल और योग क्या है?

If a graph cuts the (x)-axis at (x=-12) and (x=12), what are the product and sum of the zeroes?

Explanation opens after your attempt
Correct Answer

A. गुणनफल (-144), योग (0)Product (-144), sum (0)

Step 1

Concept

The zeroes are (-12) and (12), so the product is (-144) and the sum is (0). Tip: opposite zeroes have sum (0).

Step 2

Why this answer is correct

The correct answer is A. गुणनफल (-144), योग (0) / Product (-144), sum (0). The zeroes are (-12) and (12), so the product is (-144) and the sum is (0). Tip: opposite zeroes have sum (0).

Step 3

Exam Tip

शून्यक (-12) और (12) हैं, इसलिए गुणनफल (-144) और योग (0) है। टिप: विपरीत शून्यकों का योग (0) होता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-13x+k) का एक शून्यक (6) है, तो दूसरा शून्यक और (x)-अक्ष कटान क्या होंगे?

If (p(x)=x-2-13x+k) has one zero (6), what will be the other zero and the (x)-axis intersections?

Explanation opens after your attempt
Correct Answer

A. दूसरा (7), कटान ((6,0)), ((7,0))Other (7), intersections ((6,0)), ((7,0))

Step 1

Concept

In the quadratic, the sum of zeroes is (13), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. दूसरा (7), कटान ((6,0)), ((7,0)) / Other (7), intersections ((6,0)), ((7,0)). In the quadratic, the sum of zeroes is (13), so the other zero is (7). Tip: convert a zero into ((x,0)).

Step 3

Exam Tip

द्विघात में शून्यकों का योग (13) है, इसलिए दूसरा शून्यक (7) है। टिप: शून्यक को ((x,0)) में बदलें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-14x+53) है, तो ग्राफ (x)-अक्ष को क्यों नहीं काटेगा?

If (p(x)=x-2-14x+53), why will the graph not cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. क्योंकि यह ((x-7)2+4) हैBecause it is ((x-7)2+4)

Step 1

Concept

((x-7)2+4) is always positive, so (p(x)=0) will not occur. Tip: adding a positive number to a square gives no real intersection.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि यह ((x-7)2+4) है / Because it is ((x-7)2+4). ((x-7)2+4) is always positive, so (p(x)=0) will not occur. Tip: adding a positive number to a square gives no real intersection.

Step 3

Exam Tip

((x-7)2+4) हमेशा धनात्मक है इसलिए (p(x)=0) नहीं होगा। टिप: वर्ग में धनात्मक संख्या जुड़ने पर वास्तविक कटान नहीं मिलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ के (x)-अक्ष कटान ((s-4,0)), ((s+1,0)), ((s+7,0)) हैं, तो शून्यकों का माध्य क्या है?

If the (x)-axis intersections of a graph are ((s-4,0)), ((s+1,0)), ((s+7,0)), what is the mean of the zeroes?

Explanation opens after your attempt
Correct Answer

A. \(s+\frac{4}{3}\)

Step 1

Concept

The mean is (\frac{(s-4)+(s+1)+(s+7)}{3}=s+\frac{4}{3}). Tip: take the average even for symbolic zeroes.

Step 2

Why this answer is correct

The correct answer is A. \(s+\frac{4}{3}\). The mean is (\frac{(s-4)+(s+1)+(s+7)}{3}=s+\frac{4}{3}). Tip: take the average even for symbolic zeroes.

Step 3

Exam Tip

माध्य (\frac{(s-4)+(s+1)+(s+7)}{3}=s+\frac{4}{3}) है। टिप: प्रतीकात्मक शून्यकों में भी औसत लें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2+20x+100) है, तो ग्राफ (x)-अक्ष को किस बिंदु पर स्पर्श करेगा?

If (p(x)=x-2+20x+100), at which point will the graph touch the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. ((-10,0))

Step 1

Concept

(x-2+20x+100=(x+10)2), so the touching point is ((-10,0)). Tip: change the sign in a perfect square to get the zero.

Step 2

Why this answer is correct

The correct answer is A. ((-10,0)). (x-2+20x+100=(x+10)2), so the touching point is ((-10,0)). Tip: change the sign in a perfect square to get the zero.

Step 3

Exam Tip

(x-2+20x+100=(x+10)2) है, इसलिए स्पर्श बिंदु ((-10,0)) है। टिप: पूर्ण वर्ग में चिह्न बदलकर शून्यक मिलता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि कोई ग्राफ (y)-अक्ष को मूल बिंदु पर काटता है और (x=-9) पर (x)-अक्ष को काटता है, तो शून्यक कौन से हैं?

If a graph cuts the (y)-axis at the origin and cuts the (x)-axis at (x=-9), what are the zeroes?

Explanation opens after your attempt
Correct Answer

A. (0) और (-9)(0) and (-9)

Step 1

Concept

The origin is also on the (x)-axis, and (x=-9) is another (x)-axis intersection. Tip: count ((0,0)) as zero (0).

Step 2

Why this answer is correct

The correct answer is A. (0) और (-9) / (0) and (-9). The origin is also on the (x)-axis, and (x=-9) is another (x)-axis intersection. Tip: count ((0,0)) as zero (0).

Step 3

Exam Tip

मूल बिंदु (x)-अक्ष पर भी है और (x=-9) भी (x)-अक्ष कटान है। टिप: ((0,0)) को शून्यक (0) के रूप में गिनें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-13x-68) है, तो ग्राफ के (x)-अक्ष कटान कौन से हैं?

If (p(x)=x-2-13x-68), what are the (x)-axis intersections of the graph?

Explanation opens after your attempt
Correct Answer

A. ((17,0)) और ((-4,0))((17,0)) and ((-4,0))

Step 1

Concept

(x-2-13x-68=(x-17)(x+4)), so the zeroes are (17) and (-4). Tip: write intersection points from factors.

Step 2

Why this answer is correct

The correct answer is A. ((17,0)) और ((-4,0)) / ((17,0)) and ((-4,0)). (x-2-13x-68=(x-17)(x+4)), so the zeroes are (17) and (-4). Tip: write intersection points from factors.

Step 3

Exam Tip

(x-2-13x-68=(x-17)(x+4)) है, इसलिए शून्यक (17) और (-4) हैं। टिप: गुणनखंडों से कटान बिंदु लिखें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x=-18), (x=-6), (x=5) और (x=13) पर (x)-अक्ष को काटता है, तो शून्यकों की परास क्या है?

If a graph cuts the (x)-axis at (x=-18), (x=-6), (x=5), and (x=13), what is the range of the zeroes?

Explanation opens after your attempt
Correct Answer

C. (31)

Step 1

Concept

The range is the difference between the greatest and smallest zero, (13-(-18)=31). Tip: range is always non-negative.

Step 2

Why this answer is correct

The correct answer is C. (31). The range is the difference between the greatest and smallest zero, (13-(-18)=31). Tip: range is always non-negative.

Step 3

Exam Tip

परास सबसे बड़े और सबसे छोटे शून्यक का अंतर है (13-(-18)=31)। टिप: परास हमेशा गैरऋणात्मक होती है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

किसी परवलय के (x)-अक्ष कटान ((-17,0)) और ((9,0)) हैं। उसके शून्यकों के मध्यबिंदु का निर्देशांक क्या है?

The (x)-axis intersections of a parabola are ((-17,0)) and ((9,0)). What is the coordinate of the midpoint of its zeroes?

Explanation opens after your attempt
Correct Answer

A. ((-4,0))

Step 1

Concept

The midpoint is (\left\(\frac{-17+9}{2},0\right\)=(-4,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-4,0)). The midpoint is (\left\(\frac{-17+9}{2},0\right\)=(-4,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-17+9}{2},0\right\)=(-4,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-(2n+3)x+n(n+3)) है, तो ग्राफ के (x)-अक्ष कटान कौन से होंगे?

If (p(x)=x-2-(2n+3)x+n(n+3)), what will be the (x)-axis intersections of the graph?

Explanation opens after your attempt
Correct Answer

A. ((n,0)) और ((n+3,0))((n,0)) and ((n+3,0))

Step 1

Concept

The polynomial is ((x-n)(x-(n+3))), so the zeroes are (n) and (n+3). Tip: write zeroes as ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. ((n,0)) और ((n+3,0)) / ((n,0)) and ((n+3,0)). The polynomial is ((x-n)(x-(n+3))), so the zeroes are (n) and (n+3). Tip: write zeroes as ((x,0)).

Step 3

Exam Tip

बहुपद ((x-n)(x-(n+3))) है इसलिए शून्यक (n) और (n+3) हैं। टिप: शून्यकों को ((x,0)) में लिखें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-2(b-4)x+(b-4)2) है, तो ग्राफ (x)-अक्ष को किस (x)-मान पर स्पर्श करेगा?

If (p(x)=x-2-2(b-4)x+(b-4)2), at which (x)-value will the graph touch the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. (x=b-4)

Step 1

Concept

It is ((x-(b-4))2), so the repeated zero is (b-4). Tip: a perfect square form shows the zero quickly.

Step 2

Why this answer is correct

The correct answer is A. (x=b-4). It is ((x-(b-4))2), so the repeated zero is (b-4). Tip: a perfect square form shows the zero quickly.

Step 3

Exam Tip

यह ((x-(b-4))2) है इसलिए दोहराया शून्यक (b-4) है। टिप: पूर्ण वर्ग रूप में शून्यक तुरंत दिखता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=-(x+8)(x-2)(x-6)) है, तो (2<x<6) में ग्राफ (x)-अक्ष के किस ओर होगा?

If (p(x)=-(x+8)(x-2)(x-6)), on which side of the (x)-axis will the graph lie for (2<x<6)?

Explanation opens after your attempt
Correct Answer

A. ऊपरAbove

Step 1

Concept

In this interval the factor signs are (+), (+), (-), and the outside negative makes the value positive. Tip: apply the outside sign at the end.

Step 2

Why this answer is correct

The correct answer is A. ऊपर / Above. In this interval the factor signs are (+), (+), (-), and the outside negative makes the value positive. Tip: apply the outside sign at the end.

Step 3

Exam Tip

इस अंतराल में कारकों के चिह्न (+), (+), (-) हैं और बाहर का ऋण चिन्ह मान को धनात्मक बनाता है। टिप: बाहरी चिन्ह को अंत में लगाएं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि किसी ग्राफ के (x)-अक्ष कटान ((-3,0)), ((5,0)), ((13,0)) हैं, तो इनके शून्यकों का माध्य क्या है?

If the (x)-axis intersections of a graph are ((-3,0)), ((5,0)), ((13,0)), what is the mean of their zeroes?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

The mean is \(\frac{-3+5+13}{3}=5\). Tip: first read the (x)-values from intersection points.

Step 2

Why this answer is correct

The correct answer is A. (5). The mean is \(\frac{-3+5+13}{3}=5\). Tip: first read the (x)-values from intersection points.

Step 3

Exam Tip

माध्य \(\frac{-3+5+13}{3}=5\) है। टिप: पहले कटान बिंदुओं से (x)-मान पढ़ें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=4x-2+16x+21) है, तो ग्राफ (x)-अक्ष के सापेक्ष कैसा होगा?

If (p(x)=4x-2+16x+21), how will the graph be with respect to the (x)-axis?

Explanation opens after your attempt
Correct Answer

C. नहीं काटेगाIt will not cut

Step 1

Concept

The discriminant is (256-336=-80), so there are no real zeroes. Tip: with negative discriminant a parabola does not meet the (x)-axis.

Step 2

Why this answer is correct

The correct answer is C. नहीं काटेगा / It will not cut. The discriminant is (256-336=-80), so there are no real zeroes. Tip: with negative discriminant a parabola does not meet the (x)-axis.

Step 3

Exam Tip

विविक्तकर (256-336=-80) है, इसलिए वास्तविक शून्यक नहीं हैं। टिप: ऋणात्मक विविक्तकर पर परवलय (x)-अक्ष से नहीं मिलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=x-2+fx+f-2) और \(f\neq0\) है, तो ग्राफ (x)-अक्ष को क्यों नहीं काटेगा?

If (p(x)=x-2+fx+f-2) and \(f\neq0\), why will the graph not cut the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. क्योंकि इसका विविक्तकर ऋणात्मक हैBecause its discriminant is negative

Step 1

Concept

The discriminant is \(f^2-4f^2=-3f^2<0\), so there are no real zeroes. Tip: a negative discriminant means no (x)-axis intersection.

Step 2

Why this answer is correct

The correct answer is A. क्योंकि इसका विविक्तकर ऋणात्मक है / Because its discriminant is negative. The discriminant is \(f^2-4f^2=-3f^2<0\), so there are no real zeroes. Tip: a negative discriminant means no (x)-axis intersection.

Step 3

Exam Tip

विविक्तकर \(f^2-4f^2=-3f^2<0\) है, इसलिए वास्तविक शून्यक नहीं हैं। टिप: ऋणात्मक विविक्तकर का अर्थ (x)-अक्ष कटान नहीं है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=9(x+4)2(x-12)) है, तो ग्राफ कितने अलग बिंदुओं पर (x)-अक्ष से मिलेगा और कौन सा बिंदु स्पर्श होगा?

If (p(x)=9(x+4)2(x-12)), at how many distinct points will the graph meet the (x)-axis and which point will be a touching point?

Explanation opens after your attempt
Correct Answer

A. दो बिंदु, (x=-4) पर स्पर्शTwo points, touching at (x=-4)

Step 1

Concept

The zeroes are (-4) and (12), and ((x+4)2) causes touching at (-4). Tip: the outside (9) does not change the zeroes.

Step 2

Why this answer is correct

The correct answer is A. दो बिंदु, (x=-4) पर स्पर्श / Two points, touching at (x=-4). The zeroes are (-4) and (12), and ((x+4)2) causes touching at (-4). Tip: the outside (9) does not change the zeroes.

Step 3

Exam Tip

शून्यक (-4) और (12) हैं तथा ((x+4)2) के कारण (-4) पर स्पर्श है। टिप: बाहरी (9) शून्यक नहीं बदलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि ग्राफ (x)-अक्ष को ((-8,0)) और ((18,0)) पर काटता है, तो (y)-अक्ष से समान दूरी वाले शून्यक बनाने के लिए कौन सा परिवर्तन चाहिए?

If a graph cuts the (x)-axis at ((-8,0)) and ((18,0)), what change is needed to make the zeroes equally distant from the (y)-axis?

Explanation opens after your attempt
Correct Answer

A. (18) को (8) करना होगा(18) must be changed to (8)

Step 1

Concept

For equal distance from the (y)-axis, zeroes should be opposites, so (8) is needed with (-8). Tip: symmetric zeroes are (a) and (-a).

Step 2

Why this answer is correct

The correct answer is A. (18) को (8) करना होगा / (18) must be changed to (8). For equal distance from the (y)-axis, zeroes should be opposites, so (8) is needed with (-8). Tip: symmetric zeroes are (a) and (-a).

Step 3

Exam Tip

(y)-अक्ष से समान दूरी के लिए शून्यक विपरीत होने चाहिए, इसलिए (-8) के साथ (8) चाहिए। टिप: सममित शून्यक (a) और (-a) होते हैं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=x-2-ex) है, तो ग्राफ के (x)-अक्ष कटान कौन से होंगे?

If (p(x)=x-2-ex), what will be the (x)-axis intersections of the graph?

Explanation opens after your attempt
Correct Answer

A. ((0,0)) और ((e,0))((0,0)) and ((e,0))

Step 1

Concept

(x-2-ex=x(x-e)), so the zeroes are (0) and (e). Tip: factor out the common (x).

Step 2

Why this answer is correct

The correct answer is A. ((0,0)) और ((e,0)) / ((0,0)) and ((e,0)). (x-2-ex=x(x-e)), so the zeroes are (0) and (e). Tip: factor out the common (x).

Step 3

Exam Tip

(x-2-ex=x(x-e)) है, इसलिए शून्यक (0) और (e) हैं। टिप: सामान्य (x) गुणनखंड निकालें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि ग्राफ के (x)-अक्ष कटान ((0,0)), ((d,0)), ((-d,0)) हैं, जहाँ \(d\neq0\), तो शून्यकों का गुणनफल क्या होगा?

If the (x)-axis intersections of a graph are ((0,0)), ((d,0)), ((-d,0)), where \(d\neq0\), what will be the product of the zeroes?

Explanation opens after your attempt
Correct Answer

B. (0)

Step 1

Concept

The zeroes include (0), so the product is (0). Tip: (0) makes any product (0).

Step 2

Why this answer is correct

The correct answer is B. (0). The zeroes include (0), so the product is (0). Tip: (0) makes any product (0).

Step 3

Exam Tip

शून्यकों में (0) शामिल है, इसलिए गुणनफल (0) होगा। टिप: (0) किसी भी गुणनफल को (0) बना देता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि ग्राफ (x)-अक्ष को ((9,0)) पर छूता है और ((-5,0)) पर काटता है, तो शून्यकों का गुणनफल क्या है?

If a graph touches the (x)-axis at ((9,0)) and crosses it at ((-5,0)), what is the product of the zeroes?

Explanation opens after your attempt
Correct Answer

A. (-45)

Step 1

Concept

The zeroes are (9) and (-5), so the product is (-45). Tip: a touching point is also a zero.

Step 2

Why this answer is correct

The correct answer is A. (-45). The zeroes are (9) and (-5), so the product is (-45). Tip: a touching point is also a zero.

Step 3

Exam Tip

शून्यक (9) और (-5) हैं, इसलिए गुणनफल (-45) है। टिप: स्पर्श बिंदु भी शून्यक होता है।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=-(x-9)(x+11)) है, तो (x<-11) के लिए ग्राफ (x)-अक्ष के किस ओर होगा?

If (p(x)=-(x-9)(x+11)), on which side of the (x)-axis will the graph lie for (x<-11)?

Explanation opens after your attempt
Correct Answer

B. नीचेBelow

Step 1

Concept

For (x<-11), both factors are negative and the outside negative makes the value negative. Tip: check factor signs first.

Step 2

Why this answer is correct

The correct answer is B. नीचे / Below. For (x<-11), both factors are negative and the outside negative makes the value negative. Tip: check factor signs first.

Step 3

Exam Tip

(x<-11) पर दोनों कारक ऋणात्मक हैं और बाहर का ऋण चिन्ह मान को ऋणात्मक बनाता है। टिप: पहले कारकों का चिह्न देखें।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=5x-2-50x+125) है, तो ग्राफ (x)-अक्ष से कैसे मिलेगा?

If (p(x)=5x-2-50x+125), how will the graph meet the (x)-axis?

Explanation opens after your attempt
Correct Answer

A. (x=5) पर स्पर्श करेगाIt will touch at (x=5)

Step 1

Concept

(5x-2-50x+125=5(x-5)2), so it touches at (x=5). Tip: the outside (5) does not change the zero.

Step 2

Why this answer is correct

The correct answer is A. (x=5) पर स्पर्श करेगा / It will touch at (x=5). (5x-2-50x+125=5(x-5)2), so it touches at (x=5). Tip: the outside (5) does not change the zero.

Step 3

Exam Tip

(5x-2-50x+125=5(x-5)2) है, इसलिए (x=5) पर स्पर्श होगा। टिप: बाहरी (5) शून्यक नहीं बदलता।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि ग्राफ (x)-अक्ष को ((8,0)) और ((20,0)) पर काटता है, तो इनके बीच (x=14) की स्थिति क्या है?

If a graph cuts the (x)-axis at ((8,0)) and ((20,0)), what is the position of (x=14) between them?

Explanation opens after your attempt
Correct Answer

A. यह दोनों शून्यकों का मध्य हैIt is the midpoint of the two zeroes

Step 1

Concept

\(14=\frac{8+20}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint value need not be a zero.

Step 2

Why this answer is correct

The correct answer is A. यह दोनों शून्यकों का मध्य है / It is the midpoint of the two zeroes. \(14=\frac{8+20}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint value need not be a zero.

Step 3

Exam Tip

\(14=\frac{8+20}{2}\), इसलिए यह दोनों शून्यकों का मध्य है। टिप: मध्य मान का शून्यक होना जरूरी नहीं।

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Question Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि कोई बहुपद (x)-अक्ष को सात अलग बिंदुओं पर काटता है, तो न्यूनतम संभावित घात क्या होगी?

If a polynomial cuts the (x)-axis at seven distinct points, what is the minimum possible degree?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

For seven distinct real zeroes, the degree must be at least (7). Tip: the number of distinct zeroes cannot exceed the degree.

Step 2

Why this answer is correct

The correct answer is C. (7). For seven distinct real zeroes, the degree must be at least (7). Tip: the number of distinct zeroes cannot exceed the degree.

Step 3

Exam Tip

सात अलग वास्तविक शून्यकों के लिए घात कम से कम (7) होनी चाहिए। टिप: अलग शून्यकों की संख्या घात से अधिक नहीं हो सकती।

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