किस (k) के लिए (y=72+(k-9)x) रेखीय वृद्धि दिखाएगा?
For which (k) will (y=72+(k-9)x) show linear growth?
Explanation opens after your attempt
C. (k>9)
Concept
For linear growth the coefficient of (x) must be positive. From (k-9>0), (k>9).
Why this answer is correct
The correct answer is C. (k>9). For linear growth the coefficient of (x) must be positive. From (k-9>0), (k>9).
Exam Tip
रेखीय वृद्धि के लिए (x) का गुणांक धनात्मक होना चाहिए। (k-9>0) से (k>9) मिलता है।
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