Question

Consider the functions f(x) = 3x − 2 and g(x) = x2 − 1. What is the value of (f + g)(−4)?

−1

210

−14

1

Answer 1

Remember the previous question?
Here you have (f + g)(-4) instead of (f - g)(-4)

For this problem:
Calculate f(-4)
Calculate g(-4)
Add the two together.

Answer 2

So substitute -4

Answer 3

Right.
Start by substituting -4 for x in f(x)
f(x) = 3x - 2
Calculate f(-4) = 3(-4) - 2 = ?