Question

Help? Two questions for a medal and fan

Answer 1

Consider the functions f(x) = 3x2 and g(x) = −2x − 5. What is the value of f[g(−4)]?

9
−31
27
3

Answer 2

Given f(x) = 3x − 10 and g(x) = 12x + 8, solve for (f + g)(x) and select the correct answer below.

(f + g)(x) = 15x − 2
(f + g)(x) = 9x − 2
(f + g)(x) = 15x + 2
(f + g)(x) = 36x2 − 120x

Answer 3

@campbell_st can you help me?

Answer 4

well f(x) + g(x) = 3x - 10 + 12x + 8

just collect the like terms

Answer 5

this is the same as (f + g)(x)

Answer 6

Oh so 15x+2?

Answer 7

so the second one is C and the first one?

Answer 8

Nevermind in got it