Question

Find f(-2) when f(x) = x2 + 4x-6.
A. 6
B. 18
C. - 10
D. 2

Answer 1

C

Step-by-step explanation:

to evaluate f(- 2) , substitute x = - 2 into f(x)

f(x) = x² + 4x - 6 , then

f(- 2) = (- 2)² + 4(- 2) - 6 = 4 - 8 - 6 = - 4 - 6 = - 10

Answer 2

To find f(-2), substitute -2 into the function x² + 4x - 6.

Step-by-step explanation:

To find f(-2) when f(x) = x² + 4x - 6, we substitute -2 into the function in place of x:

f(-2) = (-2)² + 4(-2) - 6

f(-2) = 4 + (-8) - 6

f(-2) = 0

Therefore, the answer is 0.