Let's take a look at the plot:
A.
The domain is [-2,2]
B.
The range is [-1,1]
C. The plot does not pass the vertical line test. Thereby, it is not a function.
D. The relation is not one to one. For example, there are 2 values for x = 0: -1 and 1.
To plot the inequality:
0. Plot points: (0,2) , (0,-2) , (2,0) , (-2,0)
,
1. Draw lines between them
,
2. Plot y = 1 and y = -1 (straight lines that cross the y axis at 1 and -1)
The plot will be the intersection between the rhombus drawn in steps 1 and 2, and the lines from step 3.