# For what values of x, if any, does #f(x) = 1/((x+12)(x-3)) # have vertical asymptotes?

##### 1 Answer

Feb 10, 2016

In x=-12 and x=3

#### Explanation:

If we replace x by -12 or 3, the denominator will be zero, which means:

But what kind of infinity you have when x has those values?

If you use

By the other hand if you use

If by on side you have