We have the next relation:
(1,3), (2,2), (3,1), (2,0), (1,-1)
The ordered pairs above are written in the form (x,y).
A. Looking at the relation, we can deduce that it is not a function because each
x value does not have only one corresponding y value.
Look at the pairs (2,2) and (2,0).
Also, the pairs of (1,3) and (1,-1)
Both x-coordinates have two inputs that why it is not a function.
B.
The domain of a relation is the set of all x-coordinates.
Therefore:
Domain = {1, 2, 3,}
The range of a relation is the set of all y-coordinates.
Therefore:
Range ={-1,0,1,2,3}