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)?
Explanation opens after your attempt
C. (12)
Concept
The slope is (k-4) and (7(k-4)=56). Therefore (k-4=8) and (k=12).
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).
Exam Tip
ढाल (k-4) है और (7(k-4)=56)। इसलिए (k-4=8) और (k=12) है।
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