Concept-wise Practice

zeroes MCQ Questions for Class 10

zeroes se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.

Practice Questions

150 questions tagged with zeroes.

Question 61/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=x-3-10x-2+24x) है, तो ग्राफ के शून्यकों का समूह कौन सा है?

If (p(x)=x-3-10x-2+24x), what is the set of zeroes of the graph?

Explanation opens after your attempt
Correct Answer

A. (0,4,6)

Step 1

Concept

(x-3-10x-2+24x=x(x-4)(x-6)), so the zeroes are (0), (4), (6). Tip: first take (x) as the common factor.

Step 2

Why this answer is correct

The correct answer is A. (0,4,6). (x-3-10x-2+24x=x(x-4)(x-6)), so the zeroes are (0), (4), (6). Tip: first take (x) as the common factor.

Step 3

Exam Tip

(x-3-10x-2+24x=x(x-4)(x-6)) है, इसलिए शून्यक (0), (4), (6) हैं। टिप: पहले (x) सामान्य गुणनखंड निकालें।

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Question 62/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि ग्राफ के (x)-अक्ष कटान ((r-1,0)), ((r+2,0)), ((r+5,0)) हैं, तो शून्यकों का माध्य क्या है?

If the (x)-axis intersections of a graph are ((r-1,0)), ((r+2,0)), ((r+5,0)), what is the mean of the zeroes?

Explanation opens after your attempt
Correct Answer

A. (r+2)

Step 1

Concept

The mean is (\frac{(r-1)+(r+2)+(r+5)}{3}=r+2). Tip: take the average even for symbolic zeroes.

Step 2

Why this answer is correct

The correct answer is A. (r+2). The mean is (\frac{(r-1)+(r+2)+(r+5)}{3}=r+2). Tip: take the average even for symbolic zeroes.

Step 3

Exam Tip

माध्य (\frac{(r-1)+(r+2)+(r+5)}{3}=r+2) है। टिप: प्रतीकात्मक शून्यकों में भी औसत लें।

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Question 63/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि कोई ग्राफ (y)-अक्ष को मूल बिंदु पर काटता है और (x=6) 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=6), what are the zeroes?

Explanation opens after your attempt
Correct Answer

A. (0) और (6)(0) and (6)

Step 1

Concept

The origin is also on the (x)-axis, and (x=6) 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 (6) / (0) and (6). The origin is also on the (x)-axis, and (x=6) 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=6) भी (x)-अक्ष कटान है। टिप: ((0,0)) को शून्यक (0) के रूप में गिनें।

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Question 64/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

किसी परवलय के (x)-अक्ष कटान ((-13,0)) और ((7,0)) हैं। उसके शून्यकों के मध्यबिंदु का निर्देशांक क्या है?

The (x)-axis intersections of a parabola are ((-13,0)) and ((7,0)). What is the coordinate of the midpoint of its zeroes?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

The midpoint is (\left\(\frac{-13+7}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). The midpoint is (\left\(\frac{-13+7}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-13+7}{2},0\right\)=(-3,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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Question 65/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=x-3-7x-2+10x) है, तो ग्राफ के शून्यकों का माध्य क्या है?

If (p(x)=x-3-7x-2+10x), what is the mean of the zeroes of the graph?

Explanation opens after your attempt
Correct Answer

A. \(\frac{7}{3}\)

Step 1

Concept

(p(x)=x(x-5)(x-2)), so the zeroes are (0), (2), (5), and the mean is \(\frac{7}{3}\). Tip: factor first.

Step 2

Why this answer is correct

The correct answer is A. \(\frac{7}{3}\). (p(x)=x(x-5)(x-2)), so the zeroes are (0), (2), (5), and the mean is \(\frac{7}{3}\). Tip: factor first.

Step 3

Exam Tip

(p(x)=x(x-5)(x-2)) है, इसलिए शून्यक (0), (2), (5) और माध्य \(\frac{7}{3}\) है। टिप: पहले गुणनखंड करें।

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Question 66/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(-6)=0), (p(-2)<0), (p(5)=0), (p(9)>0) है, तो दिए गए शून्यकों के बीच दूरी क्या है?

If (p(-6)=0), (p(-2)<0), (p(5)=0), (p(9)>0), what is the distance between the given zeroes?

Explanation opens after your attempt
Correct Answer

B. (11)

Step 1

Concept

The given zeroes are (-6) and (5), so the distance is (5-(-6)=11). Tip: take only (x)-values where (p(x)=0).

Step 2

Why this answer is correct

The correct answer is B. (11). The given zeroes are (-6) and (5), so the distance is (5-(-6)=11). Tip: take only (x)-values where (p(x)=0).

Step 3

Exam Tip

दिए गए शून्यक (-6) और (5) हैं, इसलिए दूरी (5-(-6)=11) है। टिप: केवल (p(x)=0) वाले (x)-मान लें।

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Question 67/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

किसी परवलय का एक शून्यक (-8) है और दूसरा शून्यक पहले से (12) अधिक है। सममिति अक्ष क्या होगा?

One zero of a parabola is (-8), and the other zero is (12) more than the first. What is the axis of symmetry?

Explanation opens after your attempt
Correct Answer

A. (x=-2)

Step 1

Concept

The other zero is (4), and the average is \(\frac{-8+4}{2}=-2\). Tip: the axis of symmetry is the average of two zeroes.

Step 2

Why this answer is correct

The correct answer is A. (x=-2). The other zero is (4), and the average is \(\frac{-8+4}{2}=-2\). Tip: the axis of symmetry is the average of two zeroes.

Step 3

Exam Tip

दूसरा शून्यक (4) है और औसत \(\frac{-8+4}{2}=-2\) है। टिप: सममिति अक्ष दो शून्यकों का औसत है।

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Question 68/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

यदि (p(x)=x-2-(2m-1)x+m(m-1)) है, तो ग्राफ के (x)-अक्ष कटान कौन से होंगे?

If (p(x)=x-2-(2m-1)x+m(m-1)), what will be the (x)-axis intersections of the graph?

Explanation opens after your attempt
Correct Answer

A. ((m,0)) और ((m-1,0))((m,0)) and ((m-1,0))

Step 1

Concept

The polynomial is ((x-m)(x-(m-1))), so the zeroes are (m) and (m-1). Tip: write zeroes as ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. ((m,0)) और ((m-1,0)) / ((m,0)) and ((m-1,0)). The polynomial is ((x-m)(x-(m-1))), so the zeroes are (m) and (m-1). Tip: write zeroes as ((x,0)).

Step 3

Exam Tip

बहुपद ((x-m)(x-(m-1))) है, इसलिए शून्यक (m) और (m-1) हैं। टिप: शून्यकों को ((x,0)) में लिखें।

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Question 69/150 Expert Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 22

एक ऊपर खुलने वाले परवलय के शून्यक (-4) और (10) हैं। (x=0) पर ग्राफ की स्थिति क्या होगी?

An upward-opening parabola has zeroes (-4) and (10). What will be the position of the graph at (x=0)?

Explanation opens after your attempt
Correct Answer

B. (x)-अक्ष के नीचेBelow the (x)-axis

Step 1

Concept

(0) lies between the two zeroes and an upward parabola stays below there. Tip: check the sign region between zeroes.

Step 2

Why this answer is correct

The correct answer is B. (x)-अक्ष के नीचे / Below the (x)-axis. (0) lies between the two zeroes and an upward parabola stays below there. Tip: check the sign region between zeroes.

Step 3

Exam Tip

(0) दोनों शून्यकों के बीच है और ऊपर खुलने वाला परवलय बीच में नीचे रहता है। टिप: शून्यकों के बीच संकेत क्षेत्र देखें।

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Question 70/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-2bx+b-2-16) है तो ग्राफ के शून्यक कौन से होंगे?

If (p(x)=x-2-2bx+b-2-16), what will be the zeroes of the graph?

Explanation opens after your attempt
Correct Answer

A. (b-4) और (b+4)(b-4) and (b+4)

Step 1

Concept

It is ((x-b)2-16), so \(x-b=\pm4\) and the zeroes are (b-4), (b+4). Tip: use difference of squares.

Step 2

Why this answer is correct

The correct answer is A. (b-4) और (b+4) / (b-4) and (b+4). It is ((x-b)2-16), so \(x-b=\pm4\) and the zeroes are (b-4), (b+4). Tip: use difference of squares.

Step 3

Exam Tip

यह ((x-b)2-16) है इसलिए \(x-b=\pm4\) और शून्यक (b-4), (b+4) हैं। टिप: वर्गों के अंतर का उपयोग करें।

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Question 71/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=(x-2)(x-5)(x-9)) है तो (2<x<5) में ग्राफ कहाँ होगा?

If (p(x)=(x-2)(x-5)(x-9)), where will the graph be for (2<x<5)?

Explanation opens after your attempt
Correct Answer

A. (x)-अक्ष के ऊपरAbove the (x)-axis

Step 1

Concept

In this interval the signs are (+), (-), (-), so the product is positive. Tip: the product of two negative factors is positive.

Step 2

Why this answer is correct

The correct answer is A. (x)-अक्ष के ऊपर / Above the (x)-axis. In this interval the signs are (+), (-), (-), so the product is positive. Tip: the product of two negative factors is positive.

Step 3

Exam Tip

इस अंतराल में चिह्न (+), (-), (-) हैं इसलिए गुणनफल धनात्मक है। टिप: दो ऋणात्मक कारकों का गुणन धनात्मक होता है।

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Question 72/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ (x)-अक्ष को ((-6,0)) और ((14,0)) 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 ((-6,0)) and ((14,0)), what change is needed to make the zeroes equally distant from the (y)-axis?

Explanation opens after your attempt
Correct Answer

A. (14) को (6) करना होगा(14) must be changed to (6)

Step 1

Concept

For equal distance from the (y)-axis, zeroes should be opposites, so (6) is needed with (-6). Tip: symmetric zeroes are (a) and (-a).

Step 2

Why this answer is correct

The correct answer is A. (14) को (6) करना होगा / (14) must be changed to (6). For equal distance from the (y)-axis, zeroes should be opposites, so (6) is needed with (-6). Tip: symmetric zeroes are (a) and (-a).

Step 3

Exam Tip

(y)-अक्ष से समान दूरी के लिए शून्यक विपरीत होने चाहिए, इसलिए (-6) के साथ (6) चाहिए। टिप: सममित शून्यक (a) और (-a) होते हैं।

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Question 73/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

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

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

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

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

Step 2

Why this answer is correct

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

Step 3

Exam Tip

(x-2-cx=x(x-c)) है इसलिए शून्यक (0) और (c) हैं। टिप: सामान्य (x) गुणनखंड निकालें।

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Question 74/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

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

If the (x)-axis intersections of a graph are ((0,0)) and ((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 are (0) and (d), so the product is (0). Tip: if (0) is included, the product is (0).

Step 2

Why this answer is correct

The correct answer is B. (0). The zeroes are (0) and (d), so the product is (0). Tip: if (0) is included, the product is (0).

Step 3

Exam Tip

शून्यक (0) और (d) हैं इसलिए गुणनफल (0) है। टिप: (0) शामिल हो तो गुणनफल (0) होगा।

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Question 75/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि ग्राफ (x)-अक्ष को ((6,0)) और ((18,0)) पर काटता है तो इनके बीच (x=12) की स्थिति क्या है?

If a graph cuts the (x)-axis at ((6,0)) and ((18,0)), what is the position of (x=12) 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

\(12=\frac{6+18}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint 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. \(12=\frac{6+18}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint need not be a zero.

Step 3

Exam Tip

\(12=\frac{6+18}{2}\) है इसलिए यह दोनों शून्यकों का मध्य है। टिप: मध्य बिंदु शून्यक हो यह जरूरी नहीं।

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Question 76/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-3-8x-2+15x) है तो ग्राफ के शून्यकों का समूह कौन सा है?

If (p(x)=x-3-8x-2+15x), what is the set of zeroes of the graph?

Explanation opens after your attempt
Correct Answer

A. (0,3,5)

Step 1

Concept

(x-3-8x-2+15x=x(x-3)(x-5)), so the zeroes are (0,3,5). Tip: first take (x) as the common factor.

Step 2

Why this answer is correct

The correct answer is A. (0,3,5). (x-3-8x-2+15x=x(x-3)(x-5)), so the zeroes are (0,3,5). Tip: first take (x) as the common factor.

Step 3

Exam Tip

(x-3-8x-2+15x=x(x-3)(x-5)) है इसलिए शून्यक (0,3,5) हैं। टिप: पहले (x) सामान्य गुणनखंड निकालें।

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Question 77/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि परवलय के (x)-अक्ष कटान ((-11,0)) और ((5,0)) हैं तो मध्यबिंदु का निर्देशांक क्या है?

If the (x)-axis intersections of a parabola are ((-11,0)) and ((5,0)), what is the coordinate of the midpoint?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

The midpoint is (\left\(\frac{-11+5}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). The midpoint is (\left\(\frac{-11+5}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-11+5}{2},0\right\)=(-3,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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Question 78/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=(x+1)2(x-8)2) है तो ग्राफ (x)-अक्ष के साथ कैसा व्यवहार करेगा?

If (p(x)=(x+1)2(x-8)2), how will the graph behave with the (x)-axis?

Explanation opens after your attempt
Correct Answer

B. दोनों शून्यकों पर स्पर्श करेगाIt will touch at both zeroes

Step 1

Concept

Both factors have even powers, so the graph touches at both places. Tip: an even-power zero usually gives touching, not crossing.

Step 2

Why this answer is correct

The correct answer is B. दोनों शून्यकों पर स्पर्श करेगा / It will touch at both zeroes. Both factors have even powers, so the graph touches at both places. Tip: an even-power zero usually gives touching, not crossing.

Step 3

Exam Tip

दोनों कारक सम घात में हैं इसलिए दोनों स्थानों पर स्पर्श होगा। टिप: सम घात वाला शून्यक सामान्यतः कटान नहीं बल्कि स्पर्श देता है।

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Question 79/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=x-2-(u+v)x+uv) है तो ग्राफ के (x)-अक्ष कटान कौन से होंगे?

If (p(x)=x-2-(u+v)x+uv), what will be the (x)-axis intersections of the graph?

Explanation opens after your attempt
Correct Answer

A. ((u,0)) और ((v,0))((u,0)) and ((v,0))

Step 1

Concept

It is ((x-u)(x-v)), so the zeroes are (u) and (v). Tip: write each zero as the point ((x,0)).

Step 2

Why this answer is correct

The correct answer is A. ((u,0)) और ((v,0)) / ((u,0)) and ((v,0)). It is ((x-u)(x-v)), so the zeroes are (u) and (v). Tip: write each zero as the point ((x,0)).

Step 3

Exam Tip

यह ((x-u)(x-v)) है इसलिए शून्यक (u) और (v) हैं। टिप: शून्यक को ((x,0)) बिंदु के रूप में लिखें।

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Question 80/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि (p(x)=-(x+5)(x-1)) है तो (-5<x<1) में ग्राफ (x)-अक्ष के किस ओर होगा?

If (p(x)=-(x+5)(x-1)), on which side of the (x)-axis will the graph lie for (-5<x<1)?

Explanation opens after your attempt
Correct Answer

A. ऊपरAbove

Step 1

Concept

In this interval the first factor is positive and the second is negative, so the outside negative makes the value positive. Tip: check each factor's sign separately.

Step 2

Why this answer is correct

The correct answer is A. ऊपर / Above. In this interval the first factor is positive and the second is negative, so the outside negative makes the value positive. Tip: check each factor's sign separately.

Step 3

Exam Tip

इस अंतराल में पहला कारक धनात्मक और दूसरा ऋणात्मक है इसलिए बाहर का ऋण चिन्ह मान को धनात्मक बनाता है। टिप: हर कारक का चिह्न अलग जांचें।

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Question 81/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 24

यदि परवलय के शून्यक (-7) और (5) हैं तथा वह ऊपर की ओर खुलता है तो (x=-1) पर ग्राफ कहाँ होगा?

If a parabola has zeroes (-7) and (5) and opens upward, where will the graph be at (x=-1)?

Explanation opens after your attempt
Correct Answer

B. (x)-अक्ष के नीचेBelow the (x)-axis

Step 1

Concept

(x=-1) lies between the zeroes and an upward-opening parabola is below the axis there. Tip: check the sign region between zeroes.

Step 2

Why this answer is correct

The correct answer is B. (x)-अक्ष के नीचे / Below the (x)-axis. (x=-1) lies between the zeroes and an upward-opening parabola is below the axis there. Tip: check the sign region between zeroes.

Step 3

Exam Tip

(x=-1) दोनों शून्यकों के बीच है और ऊपर खुलने वाले परवलय में बीच का भाग नीचे होता है। टिप: शून्यकों के बीच संकेत क्षेत्र देखें।

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Question 82/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-2-2ax+a-2-9) है, तो ग्राफ के शून्यक कौन से होंगे?

If (p(x)=x-2-2ax+a-2-9), what will be the zeroes of the graph?

Explanation opens after your attempt
Correct Answer

A. (a-3) और (a+3)(a-3) and (a+3)

Step 1

Concept

It is ((x-a)2-9), so \(x-a=\pm3\) and the zeroes are (a-3), (a+3). Tip: use difference of squares.

Step 2

Why this answer is correct

The correct answer is A. (a-3) और (a+3) / (a-3) and (a+3). It is ((x-a)2-9), so \(x-a=\pm3\) and the zeroes are (a-3), (a+3). Tip: use difference of squares.

Step 3

Exam Tip

यह ((x-a)2-9) है, इसलिए \(x-a=\pm3\) और शून्यक (a-3), (a+3) हैं। टिप: वर्गों के अंतर का उपयोग करें।

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Question 83/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=(x-1)(x-3)(x-5)) है, तो (1<x<3) में ग्राफ कहाँ होगा?

If (p(x)=(x-1)(x-3)(x-5)), where will the graph be for (1<x<3)?

Explanation opens after your attempt
Correct Answer

A. (x)-अक्ष के ऊपरAbove the (x)-axis

Step 1

Concept

In this interval the signs are (+), (-), (-), so the product is positive. Tip: an odd number of negative factors gives a negative value.

Step 2

Why this answer is correct

The correct answer is A. (x)-अक्ष के ऊपर / Above the (x)-axis. In this interval the signs are (+), (-), (-), so the product is positive. Tip: an odd number of negative factors gives a negative value.

Step 3

Exam Tip

इस अंतराल में चिह्न (+), (-), (-) हैं, इसलिए गुणनफल धनात्मक है। टिप: विषम संख्या ऋणात्मक कारकों से मान ऋणात्मक होता है।

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Question 84/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x)-अक्ष को ((-4,0)) और ((10,0)) 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 ((-4,0)) and ((10,0)), what change is needed to make the zeroes equally distant from the (y)-axis?

Explanation opens after your attempt
Correct Answer

A. (10) को (4) करना होगा(10) must be changed to (4)

Step 1

Concept

For equal distance from the (y)-axis, zeroes should be opposites, so (4) is needed with (-4). Tip: symmetric zeroes are (a) and (-a).

Step 2

Why this answer is correct

The correct answer is A. (10) को (4) करना होगा / (10) must be changed to (4). For equal distance from the (y)-axis, zeroes should be opposites, so (4) is needed with (-4). Tip: symmetric zeroes are (a) and (-a).

Step 3

Exam Tip

(y)-अक्ष से समान दूरी के लिए शून्यक विपरीत होने चाहिए, इसलिए (-4) के साथ (4) चाहिए। टिप: सममित शून्यक (a) और (-a) होते हैं।

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Question 85/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

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

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

Explanation opens after your attempt
Correct Answer

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

Step 1

Concept

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

Step 2

Why this answer is correct

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

Step 3

Exam Tip

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

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Question 86/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

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

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

Explanation opens after your attempt
Correct Answer

B. (b)

Step 1

Concept

The zeroes are (0) and (b), so the sum is (b). Tip: do not forget to include the zero (0) from the origin.

Step 2

Why this answer is correct

The correct answer is B. (b). The zeroes are (0) and (b), so the sum is (b). Tip: do not forget to include the zero (0) from the origin.

Step 3

Exam Tip

शून्यक (0) और (b) हैं, इसलिए योग (b) है। टिप: मूल बिंदु का शून्यक (0) जोड़ना न भूलें।

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Question 87/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि ग्राफ (x)-अक्ष को ((4,0)) और ((12,0)) पर काटता है, तो इनके बीच (x=8) की स्थिति क्या है?

If a graph cuts the (x)-axis at ((4,0)) and ((12,0)), what is the position of (x=8) 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

\(8=\frac{4+12}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint 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. \(8=\frac{4+12}{2}\), so it is the midpoint of the two zeroes. Tip: the midpoint need not be a zero.

Step 3

Exam Tip

\(8=\frac{4+12}{2}\), इसलिए यह दोनों शून्यकों का मध्य है। टिप: मध्य बिंदु शून्यक हो यह जरूरी नहीं।

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Question 88/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=x-3-6x-2+5x) है, तो ग्राफ के शून्यकों का समूह कौन सा है?

If (p(x)=x-3-6x-2+5x), what is the set of zeroes of the graph?

Explanation opens after your attempt
Correct Answer

A. (0,1,5)

Step 1

Concept

(x-3-6x-2+5x=x(x-1)(x-5)), so the zeroes are (0,1,5). Tip: first take (x) as the common factor.

Step 2

Why this answer is correct

The correct answer is A. (0,1,5). (x-3-6x-2+5x=x(x-1)(x-5)), so the zeroes are (0,1,5). Tip: first take (x) as the common factor.

Step 3

Exam Tip

(x-3-6x-2+5x=x(x-1)(x-5)) है, इसलिए शून्यक (0,1,5) हैं। टिप: पहले (x) सामान्य गुणनखंड निकालें।

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Question 89/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि परवलय के (x)-अक्ष कटान ((-9,0)) और ((3,0)) हैं, तो मध्यबिंदु का निर्देशांक क्या है?

If the (x)-axis intersections of a parabola are ((-9,0)) and ((3,0)), what is the coordinate of the midpoint?

Explanation opens after your attempt
Correct Answer

A. ((-3,0))

Step 1

Concept

The midpoint is (\left\(\frac{-9+3}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 2

Why this answer is correct

The correct answer is A. ((-3,0)). The midpoint is (\left\(\frac{-9+3}{2},0\right\)=(-3,0)). Tip: on the (x)-axis the midpoint has (y=0).

Step 3

Exam Tip

मध्यबिंदु (\left\(\frac{-9+3}{2},0\right\)=(-3,0)) है। टिप: (x)-अक्ष पर मध्यबिंदु का (y)-मान (0) रहता है।

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Question 90/150 Hard Mathematics Polynomials Geometrical meaning of the zeroes of a polynomial. Class 10 Level 23

यदि (p(x)=(x+3)2(x-5)2) है, तो ग्राफ (x)-अक्ष के साथ कैसा व्यवहार करेगा?

If (p(x)=(x+3)2(x-5)2), how will the graph behave with the (x)-axis?

Explanation opens after your attempt
Correct Answer

B. दोनों शून्यकों पर स्पर्श करेगाIt will touch at both zeroes

Step 1

Concept

Both factors have even powers, so the graph touches at both places. Tip: an even-power zero usually gives touching, not crossing.

Step 2

Why this answer is correct

The correct answer is B. दोनों शून्यकों पर स्पर्श करेगा / It will touch at both zeroes. Both factors have even powers, so the graph touches at both places. Tip: an even-power zero usually gives touching, not crossing.

Step 3

Exam Tip

दोनों कारक सम घात में हैं, इसलिए दोनों स्थानों पर स्पर्श होगा। टिप: सम घात वाला शून्यक आमतौर पर कटान नहीं बल्कि स्पर्श देता है।

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