Question

If f (x) = 3x² + 15x + 5, then the approximate value of f (3.02) is

A. 47.66

B. 57.66

C. 67.66

D. 77.66

Answer 1

Let x = 3 and Δx = 0.02. Then, we have:

Hence, the approximate value of f(3.02) is 77.66.

The correct answer is D.