Question

How do i do this?

pls put explanation

Answer 1

1. 15

2. 3

Explanation:

These are functions of functions. You always solve the inner function first.

For number 1, the inner function is g(1) so you plug in 1 for the g function. g(1)=1+4 = 5

Since g(1)=5, you can replace g(1) with 5. Now you have f(5).

Plug in 5 for the function of f.

f(5)=3(5)=15.

For Number 2, it is the same steps but with different numbers and functions. h(0)=(0)²-1 = -1

g(-1)=-1+4=3