यदि (y=(k+7)x+2) (x) के (5) बढ़ने पर (y) (75) बढ़ाती है, तो (k) क्या है?
If (y=(k+7)x+2) increases (y) by (75) when (x) increases by (5), what is (k)?
Explanation opens after your attempt
C. (8)
Concept
The slope is (k+7) and (5(k+7)=75). Therefore (k+7=15) and (k=8).
Why this answer is correct
The correct answer is C. (8). The slope is (k+7) and (5(k+7)=75). Therefore (k+7=15) and (k=8).
Exam Tip
ढाल (k+7) है और (5(k+7)=75)। इसलिए (k+7=15) और (k=8) है।
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