Question

For the function f(x) = – 3x + 8, determine f(-5)

Answer 1

f(-5) = 23

Explanation:

plug in -5 for x

f(-5) = -3(-5) + 8

-3 x -5 = 15.

15 + 8 = 23

f(-5) = 23

Answer 2

23

Explanation:

f(x) = – 3x + 8

Let x = -5

f(-5) = – 3*-5 + 8,

= 15 +8

= 23