Question

Find the domain and range of (x^2 -1)/(x+1)?

Answer 1

For Domain check the denominator first..

Denominator should not be equal to 0..

So:

\[\large x + 1 \ne 0\]

Find x from here..

Answer 2

so Domain = R-{-1}

Answer 3

Then Range..

Answer 4

factor it ... cancel ... it behaves it everywhere except at one point.