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

##### 1 Answer

Jul 29, 2017

The domain of

The range is

#### Explanation:

Our function is

As we cannot divide by

Therefore,

The domain of

Let,

So,

In order for this quadratic equations to have solutions, the discriminant

The range is

graph{(x^2+2x)/(x+1) [-12.66, 12.65, -6.33, 6.33]}