Question

What is the domain of f(x)?

x
x
x
2 < x ≤ 4

Answer 1

A

Explanation:

–4 < x ≤ 4

Answer 2

the unfilled/open dot shows that we don't include that number
the filled/closed dot shows taht we include the number

so we see that it is open at -4 and closed at 4 so it is
-4<x and 4>x so
S= -4<x<4