# How do you find the domain and range of #sqrt (4-5x)#?

##### 1 Answer

Mar 18, 2016

I found:

#### Explanation:

The domain is found setting the argument of the square root bigger or equal to zero (to avoid a negative root):

so that must be:

The domain will be all the

The range will be all the

Graphically:

graph{sqrt(4-5x) [-10, 10, -5, 5]}