# What are the excluded values for y=4/(x+6)?

Jul 18, 2017

$x = - 6$

#### Explanation:

The denominator of the function cannot be zero as this would make y undefined. Equating the denominator to zero and solving gives the value that x cannot be.

$\text{solve "x+6=0rArrx=-6larrcolor(red)" excluded value}$