यदि (bx+9y=54) की ढाल (-2) है, तो (b) क्या है?
If (bx+9y=54) has slope (-2), what is (b)?
Explanation opens after your attempt
C. (18)
Concept
From (9y=-bx+54), the slope is \(-\frac{b}{9}\). From \(-\frac{b}{9}=-2\), (b=18).
Why this answer is correct
The correct answer is C. (18). From (9y=-bx+54), the slope is \(-\frac{b}{9}\). From \(-\frac{b}{9}=-2\), (b=18).
Exam Tip
(9y=-bx+54) से ढाल \(-\frac{b}{9}\) है। \(-\frac{b}{9}=-2\) से (b=18) है।
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