Question

If f(x) = x-2/2, then what is fx^-1(x)?

Answer 1

Your function:\[f(x)=\frac{ x-2 }{ 2 }\]If you write this as \[y=\frac{ x-2 }{ 2 }\]you can use this method to find the inverse: let x and y switch positions and write again in the form y=...

So:\[x=\frac{ y-2 }{ 2 }\]
Now try to get your y back...