Question

What is the inverse function of `y = (x+1) / x`?

Answer 1

`f^-1(x)=1/(x-1)`

Explanation:

`"rearrange making x the subject"`

`xy=x+1`

`xy-x=1`

`x(y-1)=1`

`x=1/(y-1)rArrf^-1(x)=1/(x-1)`