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zero_parameter MCQ Questions for Class 9

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11 questions tagged with zero_parameter.

Question 1/11 Expert Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 34

यदि (p(x)=(k-6)x+18) का शून्यक (-3) है, तो (k) क्या है?

If the zero of (p(x)=(k-6)x+18) is (-3), what is (k)?

Explanation opens after your attempt
Correct Answer

C. (12)

Step 1

Concept

From (-3(k-6)+18=0), we get (k=12). Substitute the zero into the polynomial to form the equation.

Step 2

Why this answer is correct

The correct answer is C. (12). From (-3(k-6)+18=0), we get (k=12). Substitute the zero into the polynomial to form the equation.

Step 3

Exam Tip

(-3(k-6)+18=0) से (k=12) मिलता है। शून्यक को बहुपद में रखकर समीकरण बनाएं।

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Question 2/11 Expert Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 33

यदि (p(x)=(k+2)x-20) का शून्यक (4) है, तो (k) क्या है?

If the zero of (p(x)=(k+2)x-20) is (4), what is (k)?

Explanation opens after your attempt
Correct Answer

C. (3)

Step 1

Concept

From (4(k+2)-20=0), we get (k=3). Substitute the zero into the polynomial and set it to (0).

Step 2

Why this answer is correct

The correct answer is C. (3). From (4(k+2)-20=0), we get (k=3). Substitute the zero into the polynomial and set it to (0).

Step 3

Exam Tip

(4(k+2)-20=0) से (k=3) मिलता है। शून्यक को बहुपद में रखकर (0) करें।

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Question 3/11 Expert Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 32

यदि (p(x)=(k-5)x+12) का शून्यक (-3) है, तो (k) क्या है?

If the zero of (p(x)=(k-5)x+12) is (-3), what is (k)?

Explanation opens after your attempt
Correct Answer

C. (9)

Step 1

Concept

From (-3(k-5)+12=0), we get (k=9). Substitute the zero into the polynomial to form the equation.

Step 2

Why this answer is correct

The correct answer is C. (9). From (-3(k-5)+12=0), we get (k=9). Substitute the zero into the polynomial to form the equation.

Step 3

Exam Tip

(-3(k-5)+12=0) से (k=9) मिलता है। शून्यक को बहुपद में रखकर समीकरण बनाएं।

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Question 4/11 Hard Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 35

यदि (p(x)=(k-4)x+15) का शून्यक (-5) है, तो (k) का मान क्या है?

If the zero of (p(x)=(k-4)x+15) is (-5), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

C. (7)

Step 1

Concept

From (-5(k-4)+15=0), we get (k=7). Substitute the zero into the polynomial and set it to (0).

Step 2

Why this answer is correct

The correct answer is C. (7). From (-5(k-4)+15=0), we get (k=7). Substitute the zero into the polynomial and set it to (0).

Step 3

Exam Tip

(-5(k-4)+15=0) से (k=7) मिलता है। शून्यक को बहुपद में रखकर (0) करें।

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Question 5/11 Hard Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 34

यदि (p(x)=(k+3)x-12) का शून्यक (4) है, तो (k) का मान क्या है?

If the zero of (p(x)=(k+3)x-12) is (4), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

A. (0)

Step 1

Concept

From (4(k+3)-12=0), we get (k=0). Substitute the zero into the polynomial and set it to (0).

Step 2

Why this answer is correct

The correct answer is A. (0). From (4(k+3)-12=0), we get (k=0). Substitute the zero into the polynomial and set it to (0).

Step 3

Exam Tip

(4(k+3)-12=0) से (k=0) मिलता है। शून्यक को बहुपद में रखकर (0) करें।

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Question 6/11 Hard Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 33

यदि (p(x)=(k-2)x+9) का शून्यक (-3) है, तो (k) का मान क्या है?

If the zero of (p(x)=(k-2)x+9) is (-3), what is the value of (k)?

Explanation opens after your attempt
Correct Answer

A. (5)

Step 1

Concept

From (-3(k-2)+9=0), we get (k=5). Substitute the zero into the polynomial and set it to (0).

Step 2

Why this answer is correct

The correct answer is A. (5). From (-3(k-2)+9=0), we get (k=5). Substitute the zero into the polynomial and set it to (0).

Step 3

Exam Tip

(-3(k-2)+9=0) से (k=5) मिलता है। शून्यक को बहुपद में रखकर (0) करें।

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Question 7/11 Medium Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 34

यदि (p(x)=9x+b) का शून्यक (-1) है, तो (b) का मान क्या है?

If the zero of (p(x)=9x+b) is (-1), what is the value of (b)?

Explanation opens after your attempt
Correct Answer

A. (9)

Step 1

Concept

Since the zero is (-1), (9(-1)+b=0). Therefore (b=9).

Step 2

Why this answer is correct

The correct answer is A. (9). Since the zero is (-1), (9(-1)+b=0). Therefore (b=9).

Step 3

Exam Tip

शून्यक (-1) होने से (9(-1)+b=0) होगा। इसलिए (b=9) है।

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Question 8/11 Medium Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 34

यदि (p(x)=mx-15) का शून्यक (5) है, तो (m) का मान क्या होगा?

If the zero of (p(x)=mx-15) is (5), what is the value of (m)?

Explanation opens after your attempt
Correct Answer

B. (3)

Step 1

Concept

Since the zero is (5), (5m-15=0). Therefore (m=3).

Step 2

Why this answer is correct

The correct answer is B. (3). Since the zero is (5), (5m-15=0). Therefore (m=3).

Step 3

Exam Tip

शून्यक (5) होने से (5m-15=0) होगा। इसलिए (m=3) है।

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Question 9/11 Medium Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 33

यदि (p(x)=7x+b) का शून्यक (-2) है, तो (b) का मान क्या है?

If the zero of (p(x)=7x+b) is (-2), what is the value of (b)?

Explanation opens after your attempt
Correct Answer

A. (14)

Step 1

Concept

Since the zero is (-2), (7(-2)+b=0). Therefore (b=14).

Step 2

Why this answer is correct

The correct answer is A. (14). Since the zero is (-2), (7(-2)+b=0). Therefore (b=14).

Step 3

Exam Tip

शून्यक (-2) होने से (7(-2)+b=0) होगा। इसलिए (b=14) है।

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Question 10/11 Medium Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 33

यदि (p(x)=ax+12) का शून्यक (3) है, तो (a) का मान क्या है?

If the zero of (p(x)=ax+12) is (3), what is the value of (a)?

Explanation opens after your attempt
Correct Answer

B. (-4)

Step 1

Concept

Since the zero is (3), (3a+12=0). Therefore (a=-4).

Step 2

Why this answer is correct

The correct answer is B. (-4). Since the zero is (3), (3a+12=0). Therefore (a=-4).

Step 3

Exam Tip

शून्यक (3) होने से (3a+12=0) होगा। इसलिए (a=-4) है।

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Question 11/11 Medium Mathematics Introduction to Polynomials Linear polynomials Class 9 Level 32

यदि (p(x)=mx+6) का शून्यक (2) है, तो (m) का मान क्या होगा?

If the zero of (p(x)=mx+6) is (2), what is the value of (m)?

Explanation opens after your attempt
Correct Answer

B. (-3)

Step 1

Concept

Since the zero is (2), (2m+6=0). Therefore (m=-3).

Step 2

Why this answer is correct

The correct answer is B. (-3). Since the zero is (2), (2m+6=0). Therefore (m=-3).

Step 3

Exam Tip

शून्यक (2) होने से (2m+6=0) होगा। इसलिए (m=-3) है।

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