Answer:
A. -4 ≤ x ≤ 3
Step-by-step explanation:
The domain is the horizontal extent of the graph.
The solid dot at the extreme left of the graph indicates x=-4 is in the domain of the graph. The solid dot at the extreme right indicates x=3 is in the domain of the graph. The continuous line between those points indicates all values of x between -4 and +3 are in the domain.
The domain is -4 ≤ x ≤ 3.
