Question

Find f(-2) if f(x) = x + x + 7. f(-2) =

Answer 1

f(-2) = 9

Explanation:

Given that,

f(x) = x² + x + 7

We need to find the value of f(-2).

Put x = -2 in the given function.

f(-2) = (-2)² + (-2) + 7

= 4-2+7

= 9

Hence, the value of f(-2) is equal to 9.