# How do you find the domain of # f(x)=sqrt((x^2) -9x) #?

##### 1 Answer

May 24, 2017

Domain of

#### Explanation:

Well we know that for

Since that's the only inequality, solving for that will give the domain.

And when

graph{sqrt(x^2-9x) [-28.42, 36.53, -1.3, 31.18]}

So, in interval notation, the domain of

And