Question

Given the polynomial function below, find f(-4). f(x) = 2x^2 - x - 9.

A) 93
B) 67
C) -89
D) -119

Answer 1

To find f(-4), substitute -4 for x in the function 2x^2 - x - 9.

Step-by-step explanation:

To find f(-4), we substitute -4 for x in the function f(x) = 2x^2 - x - 9.

So, f(-4) = 2(-4)^2 - (-4) - 9 = 2(16) + 4 - 9 = 32 + 4 - 9 = 27.

Therefore, the value of f(-4) is 27.