Question

If f(x) = 5x + 40, what is f(x) when x = -5?
0-8
0.7
O 15

Answer 1

15

Explanation:

f(x) = 5x + 40

…………………………

when x = -5

f(-5) = 5(-5) + 40

= -25 + 40

= 40 - 25

= 15