Question

HELP ME PLEASE I WILL REWARD BRAINLIEST ANSWER Use the functions f(x) = 3x + 7 and g(x) = 4x − 2 to complete the function operations listed below. Part A: Find (f + g)(x). Show your work. (3 points) Part B: Find (f ⋅ g)(x). Show your work. (3 points) Part C: Find f[g(x)]. Show your work. (4 points)

Answer 1

1. (f + g)(x) = f(x) + g(x)
  =  3x + 7 + 4x − 2
=7x+5

2.(f .g)(x) = f(x) x g(x)
(3x + 7) x (4x − 2)
12x²- 6x + 28x -14 =
12x²-34x -14

3. Substitute the x in the f function by the g function, like this:

3(4x − 2) + 7=
12x- 6 +7=
12x+1