यदि (y=130-4.5x), तो (x=4) से (x=16) तक (y) में कुल कमी कितनी होगी?
If (y=130-4.5x), what is the total decrease in (y) from (x=4) to (x=16)?
Explanation opens after your attempt
C. (54)
Concept
The change in (x) is (16-4=12). The total decrease is \(4.5\times12=54\).
Why this answer is correct
The correct answer is C. (54). The change in (x) is (16-4=12). The total decrease is \(4.5\times12=54\).
Exam Tip
(x) में परिवर्तन (16-4=12) है। कुल कमी \(4.5\times12=54\) है।
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