Answer:
Domain: x
Explanation:
Domain reffers to the set of the 1st elements, so the x values. In the image we see the ellipse go through both x and y axis but since the question is asking for domain and NOT range (range meaning y values) we can conclude that we need the x values, those being -4 and 4.
I took the review and got it right
On Edge 2020 it's answer C
Domain: -4<=x<=4