यदि (y=28+5.25x), तो (x=4) से (x=12) तक (y) में कुल वृद्धि कितनी होगी?
If (y=28+5.25x), what is the total increase in (y) from (x=4) to (x=12)?
Explanation opens after your attempt
C. (42)
Concept
The change in (x) is (12-4=8). The total increase is \(5.25\times8=42\).
Why this answer is correct
The correct answer is C. (42). The change in (x) is (12-4=8). The total increase is \(5.25\times8=42\).
Exam Tip
(x) में परिवर्तन (12-4=8) है। कुल वृद्धि \(5.25\times8=42\) है।
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