Question

Given the function f(x) = -4x² + 7x, find f(5).

Answer 1

f(5) = -65

Explanation:

f(x) = -4x² + 7x f(5)

f(5) = -4(5)² + 7(5)

f(5) = -4(25) + 35

f(5) = -100 + 35

f(5) = -65