Answer:
this relation is not a function.
Step-by-step explanation:
Given relation is
(-1, 3) (1,-1) (2,2) and (1,3)
Now plot all the ordered pairs on the graph
Then we draw vertical lines through these points
If any vertical line crosses two points then this relation is not a function
The graph is attached below
We can see that the red vertical line crosses both points (1,-1) and (1,3)
It does not passes vertical line test.So this relation is not a function.
