यदि (bx+10y=70) की ढाल (-3) है, तो (b) क्या है?
If (bx+10y=70) has slope (-3), what is (b)?
Explanation opens after your attempt
D. (30)
Concept
From (10y=-bx+70), the slope is \(-\frac{b}{10}\). From \(-\frac{b}{10}=-3\), (b=30).
Why this answer is correct
The correct answer is D. (30). From (10y=-bx+70), the slope is \(-\frac{b}{10}\). From \(-\frac{b}{10}=-3\), (b=30).
Exam Tip
(10y=-bx+70) से ढाल \(-\frac{b}{10}\) है। \(-\frac{b}{10}=-3\) से (b=30) है।
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