Question

11)
Given the function, f(x) = x2 + 5x - 3 evaluate f(-2).

Answer 1

f(- 2) = - 9

Explanation:

Substitute x = - 2 into f(x) , that is

f(- 2) = (- 2)² + 5(- 2) - 3 = 4 - 10 - 3 = 4 - 13 = - 9