Using ƒ(x) = 2x + 7 and g(x) = x − 3, find ƒ(g(-2)).

Question

asked Apr 23, 2021 138k views

1 Answer

Joeklieg · Answer 1 · 2021-04-27T16:12:03+0000

Answer: -3

Explanation:

For this problem, it is asking for f(g(-2)). This means g(-2) is plugged into every x in f(x). Therefore, we will first find g(-2).

g(-2)=-2-3

g(-2)=-5

Now that we have g(-2), we can plug it into f(x).

f(-5)=2(-5)+7

f(-5)=-10+7

f(-5)=-3