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Class 9 Mathematics - Introduction to Polynomials - Linear growth and decay Easy Quiz

Mathematics Introduction to Polynomials Linear growth and decay Easy Class 9 Level 40

Level 40 • 50/50 questions • 40 seconds per question.

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Question 1/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि पौधे की ऊंचाई (H(d)=15+3d) सेमी है, तो यह किस प्रकार का परिवर्तन है?

If the height of a plant is (H(d)=15+3d) cm, what type of change is it?

Explanation opens after your attempt
Correct Answer

A. रेखीय वृद्धिLinear growth

Explanation

Simple Explanation

(d) का गुणांक (3) धनात्मक है। धनात्मक दर रेखीय वृद्धि दिखाती है। / The coefficient of (d) is (3), which is positive. A positive rate shows linear growth.

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Question 2/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि टंकी में पानी (W(t)=90-5t) लीटर है, तो यह किस प्रकार का परिवर्तन है?

If water in a tank is (W(t)=90-5t) litres, what type of change is it?

Explanation opens after your attempt
Correct Answer

C. रेखीय क्षयLinear decay

Explanation

Simple Explanation

(t) का गुणांक (-5) ऋणात्मक है। ऋणात्मक दर रेखीय क्षय बताती है। / The coefficient of (t) is (-5), which is negative. A negative rate shows linear decay.

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Question 3/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

रेखीय नियम (A(n)=22+4n) में आरंभिक मान क्या है?

In the linear rule (A(n)=22+4n), what is the initial value?

Explanation opens after your attempt
Correct Answer

B. (22)

Explanation

Simple Explanation

आरंभिक मान (n=0) रखने पर मिलता है। (A(0)=22) है। / The initial value is found by putting (n=0). (A(0)=22).

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Question 4/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

रेखीय नियम (B(t)=130-8t) में प्रति इकाई परिवर्तन दर क्या है?

In the linear rule (B(t)=130-8t), what is the rate of change per unit?

Explanation opens after your attempt
Correct Answer

C. (-8)

Explanation

Simple Explanation

दर (t) के गुणांक के बराबर होती है। यहां दर (-8) है। / The rate equals the coefficient of (t). Here the rate is (-8).

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Question 5/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (P(x)=12+7x), तो (x=4) पर (P(x)) का मान क्या है?

If (P(x)=12+7x), what is the value of (P(x)) at (x=4)?

Explanation opens after your attempt
Correct Answer

C. (40)

Explanation

Simple Explanation

(P(4)=12+7(4)=40) है। मान निकालने के लिए (x) की जगह दी गई संख्या रखें। / (P(4)=12+7(4)=40). Substitute the given number for (x) to find the value.

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Question 6/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (R(h)=84-6h), तो (h=7) पर (R(h)) का मान क्या है?

If (R(h)=84-6h), what is the value of (R(h)) at (h=7)?

Explanation opens after your attempt
Correct Answer

A. (42)

Explanation

Simple Explanation

(R(7)=84-6(7)=42) है। क्षय में पहले गुणा करें फिर घटाएं। / (R(7)=84-6(7)=42). In decay, multiply first and then subtract.

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Question 7/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

किस नियम में समान वृद्धि (6) प्रति चरण है?

Which rule has equal growth of (6) per step?

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Correct Answer

B. (y=18+6x)

Explanation

Simple Explanation

(x) का गुणांक (6) धनात्मक है। इसलिए यह हर चरण (6) की वृद्धि दिखाता है। / The coefficient of (x) is (6), which is positive. So it shows an increase of (6) each step.

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Question 8/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

किस नियम में समान कमी (4) प्रति चरण है?

Which rule has equal decrease of (4) per step?

Explanation opens after your attempt
Correct Answer

C. (y=60-4x)

Explanation

Simple Explanation

(x) का गुणांक (-4) है। इसका अर्थ हर चरण में (4) की कमी है। / The coefficient of (x) is (-4). It means a decrease of (4) at each step.

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Question 9/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (C(d)=17+2d), तो (d) में (1) बढ़ने पर (C(d)) कितना बढ़ेगा?

If (C(d)=17+2d), by how much will (C(d)) increase when (d) increases by (1)?

Explanation opens after your attempt
Correct Answer

B. (2)

Explanation

Simple Explanation

रेखीय वृद्धि में प्रति (1) चरण वृद्धि गुणांक के बराबर होती है। यहां गुणांक (2) है। / In linear growth, the increase per (1) step equals the coefficient. Here the coefficient is (2).

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Question 10/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (D(t)=72-9t), तो (t) में (1) बढ़ने पर (D(t)) कितना घटेगा?

If (D(t)=72-9t), by how much will (D(t)) decrease when (t) increases by (1)?

Explanation opens after your attempt
Correct Answer

A. (9)

Explanation

Simple Explanation

गुणांक (-9) है इसलिए मान हर चरण में (9) घटता है। घटने की मात्रा धनात्मक रूप में (9) है। / The coefficient is (-9), so the value decreases by (9) each step. The amount of decrease is (9) in positive form.

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Question 11/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

एक विद्यार्थी के हल किए प्रश्न (Q(w)=30+8w) से बढ़ते हैं। (w=5) पर प्रश्न कितने होंगे?

A student's solved questions increase as (Q(w)=30+8w). How many questions will there be at (w=5)?

Explanation opens after your attempt
Correct Answer

C. (70)

Explanation

Simple Explanation

(Q(5)=30+8(5)=70) है। दिए गए (w) का मान सीधे रखें। / (Q(5)=30+8(5)=70). Substitute the given value of (w) directly.

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Question 12/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

एक बोरी में चावल (S(d)=64-3d) किग्रा बचता है। (d=8) पर चावल कितना बचेगा?

Rice left in a sack is (S(d)=64-3d) kg. How much rice will remain at (d=8)?

Explanation opens after your attempt
Correct Answer

A. (40) किग्रा(40) kg

Explanation

Simple Explanation

(S(8)=64-3(8)=40) है। रेखीय क्षय में समान मात्रा घटती है। / (S(8)=64-3(8)=40). In linear decay, an equal amount decreases each time.

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Question 13/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (M(x)=25+5x), तो (M(6)) क्या है?

If (M(x)=25+5x), what is (M(6))?

Explanation opens after your attempt
Correct Answer

B. (55)

Explanation

Simple Explanation

(M(6)=25+5(6)=55) है। पहले गुणा करें फिर जोड़ें। / (M(6)=25+5(6)=55). Multiply first and then add.

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Question 14/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (N(x)=58-2x), तो (N(9)) क्या है?

If (N(x)=58-2x), what is (N(9))?

Explanation opens after your attempt
Correct Answer

A. (40)

Explanation

Simple Explanation

(N(9)=58-2(9)=40) है। घटाव करते समय चिन्ह पर ध्यान दें। / (N(9)=58-2(9)=40). Pay attention to the sign while subtracting.

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Question 15/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

किस नियम में आरंभिक मान (33) और वृद्धि दर (4) है?

Which rule has initial value (33) and growth rate (4)?

Explanation opens after your attempt
Correct Answer

C. (y=33+4x)

Explanation

Simple Explanation

आरंभिक मान नियतांक पद (33) है और वृद्धि दर (4) है। इसलिए (y=33+4x) सही है। / The initial value is the constant term (33), and the growth rate is (4). So (y=33+4x) is correct.

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Question 16/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

किस नियम में आरंभिक मान (96) और क्षय दर (12) है?

Which rule has initial value (96) and decay rate (12)?

Explanation opens after your attempt
Correct Answer

D. (y=96-12x)

Explanation

Simple Explanation

क्षय में गुणांक ऋणात्मक होता है। आरंभिक मान (96) और दर (-12) से (y=96-12x) बनता है। / In decay, the coefficient is negative. Initial value (96) and rate (-12) give (y=96-12x).

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Question 17/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (F(t)=41+6t), तो (F(0)) क्या है?

If (F(t)=41+6t), what is (F(0))?

Explanation opens after your attempt
Correct Answer

B. (41)

Explanation

Simple Explanation

(t=0) रखने पर (F(0)=41) है। यह आरंभिक मान है। / Putting (t=0), (F(0)=41). This is the initial value.

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Question 18/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (G(t)=115-5t), तो (G(0)) क्या है?

If (G(t)=115-5t), what is (G(0))?

Explanation opens after your attempt
Correct Answer

C. (115)

Explanation

Simple Explanation

(t=0) रखने पर घटने वाला पद (0) हो जाता है। इसलिए (G(0)=115) है। / Putting (t=0), the decreasing term becomes (0). Therefore (G(0)=115).

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Question 19/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (L(t)=13+4t), तो (L(7)-L(3)) का मान क्या है?

If (L(t)=13+4t), what is the value of (L(7)-L(3))?

Explanation opens after your attempt
Correct Answer

C. (16)

Explanation

Simple Explanation

(7-3=4) चरण हैं और हर चरण वृद्धि (4) है। इसलिए अंतर (16) है। / There are (7-3=4) steps, and each step increases by (4). So the difference is (16).

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Question 20/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (T(t)=140-10t), तो (T(2)-T(6)) का मान क्या है?

If (T(t)=140-10t), what is the value of (T(2)-T(6))?

Explanation opens after your attempt
Correct Answer

C. (40)

Explanation

Simple Explanation

(T(2)=120) और (T(6)=80) हैं। इसलिए अंतर (40) है। / (T(2)=120) and (T(6)=80). Therefore the difference is (40).

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Question 21/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=27+0x), तो यह किस प्रकार का मान दिखाता है?

If (y=27+0x), what type of value does it show?

Explanation opens after your attempt
Correct Answer

D. स्थिर मानConstant value

Explanation

Simple Explanation

(x) का गुणांक (0) है इसलिए मान नहीं बदलता। यह स्थिर मान है। / The coefficient of (x) is (0), so the value does not change. It is a constant value.

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Question 22/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (Z(t)=16+9t), तो वृद्धि दर क्या है?

If (Z(t)=16+9t), what is the growth rate?

Explanation opens after your attempt
Correct Answer

C. (9)

Explanation

Simple Explanation

वृद्धि दर (t) के गुणांक के बराबर होती है। यहां गुणांक (9) है। / The growth rate equals the coefficient of (t). Here the coefficient is (9).

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Question 23/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (V(t)=108-18t), तो क्षय दर का परिमाण क्या है?

If (V(t)=108-18t), what is the magnitude of the decay rate?

Explanation opens after your attempt
Correct Answer

C. (18)

Explanation

Simple Explanation

दर (-18) है और उसका परिमाण (18) है। क्षय की मात्रा धनात्मक रूप में ली जाती है। / The rate is (-18), and its magnitude is (18). The amount of decay is taken in positive form.

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Question 24/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि कोई राशि शुरू में (12) है और हर चरण (5) बढ़ती है, तो नियम कौन सा होगा?

If a quantity starts at (12) and increases by (5) each step, which rule represents it?

Explanation opens after your attempt
Correct Answer

D. (y=12+5x)

Explanation

Simple Explanation

आरंभिक मान (12) है और वृद्धि दर (5) है। इसलिए (y=12+5x) सही है। / The initial value is (12), and the growth rate is (5). So (y=12+5x) is correct.

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Question 25/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि कोई राशि शुरू में (66) है और हर चरण (3) घटती है, तो नियम कौन सा होगा?

If a quantity starts at (66) and decreases by (3) each step, which rule represents it?

Explanation opens after your attempt
Correct Answer

C. (y=66-3x)

Explanation

Simple Explanation

आरंभिक मान (66) है और कमी (3) प्रति चरण है। इसलिए (y=66-3x) सही है। / The initial value is (66), and the decrease is (3) per step. So (y=66-3x) is correct.

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Question 26/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (E(t)=21+11t), तो (E(4)) और (E(5)) के बीच अंतर क्या है?

If (E(t)=21+11t), what is the difference between (E(4)) and (E(5))?

Explanation opens after your attempt
Correct Answer

A. (11)

Explanation

Simple Explanation

लगातार दो मानों का अंतर वृद्धि दर के बराबर होता है। यहां दर (11) है। / The difference between consecutive values equals the growth rate. Here the rate is (11).

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Question 27/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (Y(t)=96-12t), तो (Y(3)) से (Y(4)) तक कमी कितनी है?

If (Y(t)=96-12t), what is the decrease from (Y(3)) to (Y(4))?

Explanation opens after your attempt
Correct Answer

A. (12)

Explanation

Simple Explanation

लगातार दो चरणों में कमी दर के परिमाण के बराबर होती है। यहां कमी (12) है। / The decrease between two consecutive steps equals the magnitude of the rate. Here the decrease is (12).

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Question 28/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (I(t)=6t+8), तो (t=0) से (t=5) तक कुल वृद्धि कितनी है?

If (I(t)=6t+8), what is the total increase from (t=0) to (t=5)?

Explanation opens after your attempt
Correct Answer

B. (30)

Explanation

Simple Explanation

दर (6) है और (5) चरण हैं। कुल वृद्धि \(6\times5=30\) है। / The rate is (6), and there are (5) steps. The total increase is \(6\times5=30\).

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Question 29/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (O(t)=88-4t), तो (t=0) से (t=9) तक कुल कमी कितनी है?

If (O(t)=88-4t), what is the total decrease from (t=0) to (t=9)?

Explanation opens after your attempt
Correct Answer

B. (36)

Explanation

Simple Explanation

कमी दर (4) है और (9) चरण हैं। कुल कमी \(4\times9=36\) है। / The decrease rate is (4), and there are (9) steps. The total decrease is \(4\times9=36\).

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Question 30/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

कौन सा कथन (y=19+7x) के लिए सही है?

Which statement is correct for (y=19+7x)?

Explanation opens after your attempt
Correct Answer

D. यह रेखीय वृद्धि हैIt is linear growth

Explanation

Simple Explanation

(x) का गुणांक (7) धनात्मक है। इसलिए यह रेखीय वृद्धि है। / The coefficient of (x) is (7), which is positive. Therefore it is linear growth.

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Question 31/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

कौन सा कथन (y=52-4x) के लिए सही है?

Which statement is correct for (y=52-4x)?

Explanation opens after your attempt
Correct Answer

B. यह रेखीय क्षय हैIt is linear decay

Explanation

Simple Explanation

(x) का गुणांक (-4) ऋणात्मक है। इसलिए यह रेखीय क्षय है। / The coefficient of (x) is (-4), which is negative. Therefore it is linear decay.

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Question 32/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (U(t)=9t+14), तो (t=7) पर (U(t)) क्या है?

If (U(t)=9t+14), what is (U(t)) at (t=7)?

Explanation opens after your attempt
Correct Answer

C. (77)

Explanation

Simple Explanation

(U(7)=9(7)+14=77) है। पहले गुणा करें फिर जोड़ें। / (U(7)=9(7)+14=77). Multiply first and then add.

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Question 33/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (J(t)=100-6t), तो (t=11) पर (J(t)) क्या है?

If (J(t)=100-6t), what is (J(t)) at (t=11)?

Explanation opens after your attempt
Correct Answer

A. (34)

Explanation

Simple Explanation

(J(11)=100-6(11)=34) है। क्षय में कुल कमी घटाएं। / (J(11)=100-6(11)=34). In decay, subtract the total decrease.

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Question 34/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (X(t)=18+8t), तो (X(6)) और (X(0)) का अंतर क्या है?

If (X(t)=18+8t), what is the difference between (X(6)) and (X(0))?

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Correct Answer

B. (48)

Explanation

Simple Explanation

(6) चरणों में हर बार (8) वृद्धि होती है। कुल अंतर (48) है। / In (6) steps, the increase is (8) each time. The total difference is (48).

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Question 35/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (K(t)=160-8t), तो (K(0)-K(12)) का मान क्या है?

If (K(t)=160-8t), what is the value of (K(0)-K(12))?

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Correct Answer

B. (96)

Explanation

Simple Explanation

(12) चरणों में प्रति चरण (8) की कमी है। कुल कमी (96) है। / There is a decrease of (8) per step for (12) steps. The total decrease is (96).

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Question 36/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

नियम (y=5x+21) में (x) के गुणांक का अर्थ क्या है?

In the rule (y=5x+21), what does the coefficient of (x) mean?

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Correct Answer

B. हर चरण में (5) की वृद्धिIncrease of (5) each step

Explanation

Simple Explanation

(x) का गुणांक (5) है। यह प्रति चरण वृद्धि दर बताता है। / The coefficient of (x) is (5). It shows the growth rate per step.

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Question 37/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

नियम (y=125-5x) में (5) क्या बताता है?

In the rule (y=125-5x), what does (5) represent?

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Correct Answer

C. प्रति चरण कमीDecrease per step

Explanation

Simple Explanation

(-5x) बताता है कि हर चरण में (5) की कमी होती है। (125) आरंभिक मान है। / (-5x) shows that (5) decreases each step. (125) is the initial value.

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Question 38/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (P(t)=a+7t) और (P(0)=31), तो (a) क्या है?

If (P(t)=a+7t) and (P(0)=31), what is (a)?

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Correct Answer

C. (31)

Explanation

Simple Explanation

(t=0) रखने पर (P(0)=a) होता है। इसलिए (a=31) है। / Putting (t=0), (P(0)=a). Therefore (a=31).

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Question 39/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (R(t)=b-10t) और (R(0)=75), तो (b) क्या है?

If (R(t)=b-10t) and (R(0)=75), what is (b)?

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Correct Answer

C. (75)

Explanation

Simple Explanation

(t=0) रखने पर (R(0)=b) होता है। इसलिए (b=75) है। / Putting (t=0), (R(0)=b). Therefore (b=75).

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Question 40/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=29+kt) रेखीय वृद्धि है, तो (k) के लिए कौन सी बात सही होनी चाहिए?

If (y=29+kt) is linear growth, what must be true about (k)?

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Correct Answer

A. (k>0)

Explanation

Simple Explanation

रेखीय वृद्धि के लिए दर धनात्मक होनी चाहिए। इसलिए (k>0) सही है। / For linear growth, the rate must be positive. Therefore (k>0) is correct.

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Question 41/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=92-kt) रेखीय क्षय है और (k>0), तो (t) बढ़ने पर (y) क्या होगा?

If (y=92-kt) is linear decay and (k>0), what happens to (y) as (t) increases?

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Correct Answer

B. (y) घटेगा(y) will decrease

Explanation

Simple Explanation

(kt) घटाया जा रहा है और (k>0) है। इसलिए (t) बढ़ने पर (y) घटेगा। / (kt) is being subtracted and (k>0). Therefore (y) will decrease as (t) increases.

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Question 42/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (H(t)=36+4t), तो (H(10)) क्या है?

If (H(t)=36+4t), what is (H(10))?

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Correct Answer

B. (76)

Explanation

Simple Explanation

(H(10)=36+4(10)=76) है। सरल रेखीय वृद्धि में सीधे प्रतिस्थापन करें। / (H(10)=36+4(10)=76). In simple linear growth, substitute directly.

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Question 43/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (K(t)=144-12t), तो (K(8)) क्या है?

If (K(t)=144-12t), what is (K(8))?

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Correct Answer

A. (48)

Explanation

Simple Explanation

(K(8)=144-12(8)=48) है। क्षय में कुल कमी घटाएं। / (K(8)=144-12(8)=48). In decay, subtract the total decrease.

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Question 44/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=6x+11), तो (x=2) से (x=7) तक (y) में कुल वृद्धि क्या है?

If (y=6x+11), what is the total increase in (y) from (x=2) to (x=7)?

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Correct Answer

B. (30)

Explanation

Simple Explanation

(5) चरणों का अंतर है और दर (6) है। कुल वृद्धि \(6\times5=30\) है। / There is a difference of (5) steps and the rate is (6). The total increase is \(6\times5=30\).

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Question 45/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=118-7x), तो (x=1) से (x=6) तक (y) में कुल कमी क्या है?

If (y=118-7x), what is the total decrease in (y) from (x=1) to (x=6)?

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Correct Answer

C. (35)

Explanation

Simple Explanation

(5) चरणों का अंतर है और कमी दर (7) है। कुल कमी \(7\times5=35\) है। / There is a difference of (5) steps and the decrease rate is (7). The total decrease is \(7\times5=35\).

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Question 46/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि किसी वस्तु की संख्या (5) से शुरू होकर हर चरण (6) बढ़ती है, तो (x) चरणों के बाद सही नियम क्या है?

If the number of objects starts from (5) and increases by (6) each step, what is the correct rule after (x) steps?

Explanation opens after your attempt
Correct Answer

D. (y=5+6x)

Explanation

Simple Explanation

आरंभिक संख्या (5) है और वृद्धि दर (6) है। इसलिए (y=5+6x) सही है। / The initial number is (5), and the growth rate is (6). So (y=5+6x) is correct.

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Question 47/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=42+3x), तो (x=6) पर (y) का मान क्या है?

If (y=42+3x), what is the value of (y) at (x=6)?

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Correct Answer

B. (60)

Explanation

Simple Explanation

(y=42+3(6)=60) है। रेखीय वृद्धि में दिए गए मान को सीधे रखें। / (y=42+3(6)=60). In linear growth, substitute the given value directly.

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Question 48/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=85-5x), तो (x=9) पर (y) का मान क्या है?

If (y=85-5x), what is the value of (y) at (x=9)?

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Correct Answer

A. (40)

Explanation

Simple Explanation

(y=85-5(9)=40) है। रेखीय क्षय में कुल कमी घटाएं। / (y=85-5(9)=40). In linear decay, subtract the total decrease.

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Question 49/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=14+9x), तो (x=2) से (x=6) तक कुल वृद्धि कितनी होगी?

If (y=14+9x), what will be the total increase from (x=2) to (x=6)?

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Correct Answer

C. (36)

Explanation

Simple Explanation

(x) में परिवर्तन (6-2=4) है और दर (9) है। कुल वृद्धि \(9\times4=36\) है। / The change in (x) is (6-2=4) and the rate is (9). The total increase is \(9\times4=36\).

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Question 50/50 Easy Mathematics Introduction to Polynomials Linear growth and decay Class 9 Level 40

यदि (y=132-11x), तो (x=3) से (x=7) तक कुल कमी कितनी होगी?

If (y=132-11x), what will be the total decrease from (x=3) to (x=7)?

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Correct Answer

C. (44)

Explanation

Simple Explanation

(x) में परिवर्तन (7-3=4) है और कमी दर (11) है। कुल कमी \(11\times4=44\) है। / The change in (x) is (7-3=4) and the decay rate is (11). The total decrease is \(11\times4=44\).

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