pls help I don’t understand this

Answer:
-5, 0, 1 , 5
Step-by-step explanation:
What you want to do is find all of the points on the graph:
(-5,-1), (-5,3),(0,3),(1,0),(5,2)
The domain would be -5,-5,0,1,5 because it is in the x-axis.
Look at it as this (-5,-1) (-5,3) (0,3) (1, 0) (5,2)
The numbers in bold are the X-axis which is another word for domain
For example (-5, -1), -5 would be in the X-axis and -1 would be in the Y-axis, It goes "x,y" all the time.
Since there are two -5's on the domain, you just ignore one of the -5's.
Hope this helps!!