Question

what is the domain?
-3 < x ≤ 3
-4 ≤ x ≤ 5
-4 ≤ y ≤ 5
-3 < y ≤ 3

Explanation:

Step1: Identify domain definition

The domain of a function is the set of all valid $x$-values for the graph.

Step2: Read graph's x-range

The graph's leftmost $x$-value is $-4$ (closed dot, included), rightmost is $5$ (open dot, excluded).

Answer:

$-4 \leq x < 5$