# How do you find the domain and range of #f(x) = (x+3 )/ (x^2 + 8x + 15)#?

##### 1 Answer

Oct 19, 2015

#### Answer:

Or is can be written as

you may have been taught to use '[ ]' for included and '] [' for excluding.

#### Explanation:

You need to simplify the denominator and find where x = 0.

Since the denominator cannot be zero, since

The domain is