यदि रेखा (y=(k-4)x+3) (x) के (7) बढ़ने पर (y) (56) बढ़ाती है, तो (k) क्या है?

If the line (y=(k-4)x+3) increases (y) by (56) when (x) increases by (7), what is (k)?

Author: Muft Shiksha Editorial Team Published:
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Correct Answer

C. (12)

Step 1

Concept

The slope is (k-4) and (7(k-4)=56). Therefore (k-4=8) and (k=12).

Step 2

Why this answer is correct

The correct answer is C. (12). The slope is (k-4) and (7(k-4)=56). Therefore (k-4=8) and (k=12).

Step 3

Exam Tip

ढाल (k-4) है और (7(k-4)=56)। इसलिए (k-4=8) और (k=12) है।

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Mathematics Answer, Explanation and Revision Hints

यदि रेखा (y=(k-4)x+3) (x) के (7) बढ़ने पर (y) (56) बढ़ाती है, तो (k) क्या है? / If the line (y=(k-4)x+3) increases (y) by (56) when (x) increases by (7), what is (k)?

Correct Answer: C. (12). Explanation: ढाल (k-4) है और (7(k-4)=56)। इसलिए (k-4=8) और (k=12) है। / The slope is (k-4) and (7(k-4)=56). Therefore (k-4=8) and (k=12).

Which concept should I revise for this Mathematics MCQ?

The slope is (k-4) and (7(k-4)=56). Therefore (k-4=8) and (k=12).

What exam hint can help solve this Mathematics question?

ढाल (k-4) है और (7(k-4)=56)। इसलिए (k-4=8) और (k=12) है।