कौन सी रेखा ((0,18)) पर (y)-अक्ष काटती है और (x) के (7) बढ़ने पर (y) (49) घटाती है?

Which line cuts the (y)-axis at ((0,18)) and decreases (y) by (49) when (x) increases by (7)?

Author: Muft Shiksha Editorial Team Published:
Explanation opens after your attempt
Correct Answer

B. (y=-7x+18)

Step 1

Concept

The slope is \(-\frac{49}{7}=-7\) and the (y)-intercept is (18). So (y=-7x+18) is correct.

Step 2

Why this answer is correct

The correct answer is B. (y=-7x+18). The slope is \(-\frac{49}{7}=-7\) and the (y)-intercept is (18). So (y=-7x+18) is correct.

Step 3

Exam Tip

ढाल \(-\frac{49}{7}=-7\) है और (y)-अवरोध (18) है। इसलिए (y=-7x+18) सही है।

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Mathematics Answer, Explanation and Revision Hints

कौन सी रेखा ((0,18)) पर (y)-अक्ष काटती है और (x) के (7) बढ़ने पर (y) (49) घटाती है? / Which line cuts the (y)-axis at ((0,18)) and decreases (y) by (49) when (x) increases by (7)?

Correct Answer: B. (y=-7x+18). Explanation: ढाल \(-\frac{49}{7}=-7\) है और (y)-अवरोध (18) है। इसलिए (y=-7x+18) सही है। / The slope is \(-\frac{49}{7}=-7\) and the (y)-intercept is (18). So (y=-7x+18) is correct.

Which concept should I revise for this Mathematics MCQ?

The slope is \(-\frac{49}{7}=-7\) and the (y)-intercept is (18). So (y=-7x+18) is correct.

What exam hint can help solve this Mathematics question?

ढाल \(-\frac{49}{7}=-7\) है और (y)-अवरोध (18) है। इसलिए (y=-7x+18) सही है।