# What is the domain and range of #y= 4 cos x#?

##### 1 Answer

Jul 23, 2017

Domain:

Range:

#### Explanation:

The **domain** is the list of all allowable

With the function

graph{4cosx}

and so the domain is all reals, or

The **range** is the list of all the values generated from the domain.

In this case, the resulting