Answer:
(x-1) / 2 = y
Step-by-step explanation:
To take inverses all you have to do is switch x and y values and then solve for y again. With that being said:
f(x) = 2x+1
y = 2x + 1
x = 2y + 1
x - 1 = 2y
F(x-1)=x+1/2