Question

What is the inverse of the function f(x) = 2x + 1?
A.h(x) = 1/2x - 1/2
B.h(x) = 1/2x +1/2
C.h(x) = 1/2x -2
D.h(x) = 1/2x +2

Answer 1

      f(x) = 2x + 1
         y = 2x + 1
         x = 2y + 1
    x - 1 = 2y
       2       2
¹/₂x - ¹/₂ = y

The answer is A.

Answer 2

Your answser would be A. I just took the test