Answer: Choice D
Explanation:
The furthest left we can go is when x = -4. The furthest to the right is when x = -1. All points on this line segment have x values between those two mentioned numbers, including both endpoints due to the closed filled in circles. We can write the domain as an inequality to say [tex]-4 \le x \le -1[/tex] or just say "all real numbers between -4 and -1".
