रेखा (y=-8x+30) में (x) कितने बढ़ाने पर (y) (64) घटेगा?
In the line (y=-8x+30), by how much must (x) increase for (y) to decrease by (64)?
Explanation opens after your attempt
C. (8)
Concept
The slope is (-8), so the decrease is \(8\Delta x\). From \(8\Delta x=64\), \(\Delta x=8\).
Why this answer is correct
The correct answer is C. (8). The slope is (-8), so the decrease is \(8\Delta x\). From \(8\Delta x=64\), \(\Delta x=8\).
Exam Tip
ढाल (-8) है, इसलिए कमी \(8\Delta x\) होगी। \(8\Delta x=64\) से \(\Delta x=8\) है।
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