Directions: Choose the letter of the correct answer. Write only the letter
of your choice on the blank at the right.

1. Find (f g)(x) if f(x)=2x+3 and g(x)=x-1.
●
A. (f g)(x)=2x²-2x-3
B.
(fog)(x)=2x²+x-3

2. Find (f g)(-1) if f(x)=2x+3 and g(x)=x-1.
A. 0
B.5
C.-2

3. Find (f-g)(x) if f(x)=2x²-x-3 and g(x)=x+1.
A. (f-g)(x)=2x²-2
B. (f-g)(x)=2x2²-2x-4

5. If g(x) = 3x -5 and f(x)=√x, find (fog)(10).
A. 5
B.-6

6. If f(x) = 6 - and g(x)=, find (4)(x).
A. (4)(x) = 6x-1
B. (4)(x)=x-6
C. (fog)(x)=x²-x+3
D. (fog)(x)=x²-2x+3

4. Find (f+g)(x) if f(x)=5-x² and g(x)=x² + 4x-12.
A. (f+g)(x) = 2x² + 4x - 7
B. (f+g)(x)=2x² - 4x-7
C. (f-g)(x)=2x²-2x +4
D. (f-g)(x)=2x²+2x+4
C. (f+g)(x) = 4x+7
D. (f+g)(x) = 4x-7
C.4
c. ()(x) = 6x - 1
C.
D. (-) (x) = ²
D. 6

7. If g(x)=x²+3x-5 and f(x) = 4x²-x+3, find (g-f(x).
A. (f-g)(x)=3x²-4x+8
B. (g-f(x)=-3x² + 4x-8
D.-6
C. (f-g)(x)=-3x² + 4x-8
D. (g-f(x)=3x² - 4x+8​