What are the important parts of the equation to graph f(x) = (x^2 - 1) / (x+1)?

1 Answer
Jun 26, 2018

xcancel=-1

Explanation:

This equation can be simplified to ((x+1)(x-1))/(x+1) rarr (cancel(x+1)(x-1))/(cancel(x+1)) rarr x-1

However we must remember the restriction xcancel=-1 As doing so would make 0/0 in the original equation. However every other point would be acceptable.