Respuesta :

youbethatprettymfman
Answer: f^ -1 = x-9/2
Explanation & Steps:
1) Change f(x) to y
2) Switch y and x -> you will get x= y + 9/2
3) subtract 9/2 on both sides -> you will get x-9/2= y

Result- y = x-9/2
(Switch y to f^-1)
Hope this helps :)