# How to find the asymptotes of #y =(1-x^2)/( x-1)# ?

##### 1 Answer

Feb 2, 2016

Notice how you can actually simplify this.

#y = (-(x^2 - 1))/(x-1)#

The numerator is a difference of two squares.

#= (-(x + 1)cancel((x-1)))/cancel(x-1)#

#= color(blue)(-x - 1)#

**Asymptotes** are generally found when the denominator of the fractional equation *would* be **no asymptotes**.

However, since we did just cancel out **removable discontinuity** at *would* be undefined when