# How do you simplify and find the excluded value of # (r + 6) / (r^2 - r - 6)#?

##### 1 Answer

Mar 30, 2016

the excluded values are :

#### Explanation:

Given:

The denominator can be factorised giving

The excluded values will be when the denominator equals zero

Set

So the excluded values are :

'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

In higher mathematics these are called asymptotes.

excluded values

Graph of :