Question

How do I find the domain of a function?

Answer 1

\[\sqrt{x-4}\]

Answer 2

use Set Theory

Answer 3

look at the graph

Answer 4

you want all of the x values that are valid for your function

Answer 5

when is a square root invalid

Answer 6

\[\sqrt{x}\]

Answer 7

domain is all the possible values of x in a graph
when graphed \(\sqrt{x-4}\) looks like this:so this shows that x starts at 4 and goes on to infinity which means the domain is \(x\ge4\)
:)

Answer 8

another way to write your domain