Question

Hello I don’t get this, I don’t want the answer I just need someone to teach it to me because it wasn’t in the lesson

Answer 1

`3 \le x \le 7`.

Explanation:

Hopefully this will help. Let me know in the comments if it doesn't.

The domain is all the x's where the function exists. The function you have starts at x=3 and ends at x=7. There are no breaks in your line between those numbers for x. So your domain is all x's between 3 and 7 ( inclusive).

So that means all values of x that is greater than or equal to 3 and values of x less than or equal to 7.

`3 \le x \le 7`.