Question

FSelect the correct answer. Consider these functions: f(x)=4x^3-10 g(x)=3x-4/2 What is the value of g(f(2))? A. -6 B. 2 C. 19 D. 31

Answer 1

D. 31

Explanation:

First we need to find what the value of f(2) is, so we are going to substitute x for 2 in f():

f(2)=4(2)^3-10

= 4(8)-10

= 32-10

= 22

And then we substitute 22 for x in g()

g(22)= (3(22)-4)/2

= (66 -4)/2

= 62/2

= 31