Answer:
The inverse of f(x) is 
Step-by-step explanation:
To find the inverse of the function
, perform the following steps:
1) do

2) Solve the equation for the variable x.


3) exchange the variable x with the variable y
----> 
4) Change the variable y by 
Finally the inverse function is:

Answer:
I think it is 13/15 (0,8666666...) but I am not sure