# How do you find the domain and range of #k(x)=9 #?

##### 1 Answer

Determine all possible values the function can have. In this case, it is

#### Explanation:

This is a linear function; a straight line.

In addition, this is a horizontal straight line. I know this because the degree is

Domain and range are sets of **all** possible values the function can have (may not be at the same time).

Because the function is a straight line at the

Therefore, the domain and range are:

#"D": {x inRR}#

#"R": {y inRR | 9}#

Unfortunately, Socratic cannot graph functions of horizontal/vertical straight lines... but just imagine a horizontal straight line at the

Hope this helps :)