Question

What is the domain and range of `y= -x/( x^2-1)`?

Answer 1

Domain is any real value except `x != +-1`
Range is any real value.

Explanation:

`y= - x/(x^2-1)`
Domain (values of x) : `x^2-1 != 0 or x^2 != 1 or x != +-1`
Domain is any real value except `x != +-1`
Range (values of y) is any real value. graph{-x/(x^2-1) [-11.25, 11.25, -5.625, 5.625]} [Ans]