Question

How do you find the inverse of `f(x)= 2/(x+1)` and is it a function?

Answer 1

`x = 2/y -1`

Explanation:

`y=2/(x+1)`
cross multiply
`x+1=2/y`
`x = 2/y -1`
This is not a function as at y = 0 it is not defined but the original function is also not a function as at x = -1 it is not defined