From the question we are given
[tex]\mleft\lbrace(x,y)\colon|x|+|y|\le2\text{ and }\lvert y\rvert\le1\mright\rbrace[/tex]
Graphing the relation we have
From the graph, we have
A. Domain
The domain of the function is
[tex]\lbrack-2,2\rbrack[/tex]
B. Range
The range of the function is
[tex]\lbrack-1,1\rbrack[/tex]
C. The graph of the relation is as shown above
D. From the graph, the relation is not a function.
E. Since the relation is not a function then it is not one-to-one
