# How do you find the domain and range of #f(x) = 1/(1+x^2)#?

##### 1 Answer

Apr 6, 2018

The domain is

#### Explanation:

The denominator is

Therefore,

The domain of

To determine the range, proceed as follows

The range of

Therefore,

The range is

graph{1/(1+x^2) [-11.25, 11.25, -5.625, 5.625]}