Question

Given f(x) = -x + 2, find f(-5).

Answer 1

f(x) = -x + 2
f(-5) = -(-5) + 2
f(-5) = 5 + 2
f(-5) = 7

Answer 2

7

Explanation:

We have the expression -x + 2 and are asked to solve if x = -5.

Since we know the value of x, we need to replace x with the amount it is.

-x + 2 if x = -5.

-(-5) + 2

Negative cancels a negative.

5 + 2

7