# How do you find the limit of #(4^y) / (y^2)# as y approaches 0?

##### 1 Answer

Sep 7, 2017

#### Explanation:

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples. (From: https://socratic.org/calculus/limits/determining-limits-algebraically) Many more details, and a good video there too.

In this case the controlling factor is the denominator. No matter what path the numerator takes, the ratio must approach