Question

What is the inverse of the function below? F(x) = x - 6

Answer 1

To compute the inverse function of F(x) you simply have to get how argument x depends of value F(x).
F(x)=x-6
Inverse function:
x = F(x)+6
To show that there are different mathematical objects just use e.g F(y)
F(y)=y+6

Answer 2

f(x)=x+6

Explanation:

its the exact opposite of the answer, so if it was x-6 then the inverse would be x+6