यदि (y=48+12x), तो (x) में कितनी वृद्धि करने पर (y) (84) बढ़ेगा?
If (y=48+12x), by how much must (x) increase for (y) to increase by (84)?
Explanation opens after your attempt
C. (7)
Concept
The total increase is \(12\Delta x\). From \(12\Delta x=84\), \(\Delta x=7\).
Why this answer is correct
The correct answer is C. (7). The total increase is \(12\Delta x\). From \(12\Delta x=84\), \(\Delta x=7\).
Exam Tip
कुल वृद्धि \(12\Delta x\) होगी। \(12\Delta x=84\) से \(\Delta x=7\) मिलता है।
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