# How do you find the domain and range of #y =sqrt(2 - x)#?

##### 1 Answer

Nov 3, 2017

Domain is

#### Explanation:

If we are dealing with real numbers, we cannot include any values of x in the domain which will render the value of 2-x as negative, hence domain is restricted to

The radical symbol

A graph helps to see both of these:

graph{sqrt(2-x) [-10, 10, -5, 5]}