passpadi

2003

Mathematics

JAMB

Find the slope of the curve y = 2x2 + 5x - 3 at (1, 4).

A.

4

B.

6

C.

7

D.

9

Correct Answer: 9

Explanation

y = 2x2 + 5x - 3 dy/dx = 4x + 5 = 4 + 5 = 9

y = 2x2 + 5x - 3 dy/dx = 4x + 5 = 4 + 5 = 9
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