Question

Two questions?

18.Find (fog) if f(x) = 2x - 1 and g(x) = x + 2.
A. 2x - 3
B. 2x + 1
C. 2x - 1
D. 2x + 3

I think it's B (2x + 1)

what I did to get my answer?
I combined like terms (2x and x) = 2x or 3x?
and then I added -1 + 2 and got 1.

19.
What is the change that occurs to the parent function f(x) = x2 given the function f(x) = (x + 1)2 - 5.
A. The graph moves 1 unit to the left and 5 units up.
B. The graph moves 1 unit to the left and 5 units down.
C. The graph moves 1 unit to the right and 5 units down.
D. The graph moves 1 unit to the right and 5 u

Answer 1

2x+3 is answer

Answer 2

The graph moves 1 unit to the right and 5 units down.

Answer 3

(fog)(x)=f(g(x))=f(x+2)=2(x+2)-1=2x+3

Answer 4

a is answer