Question

Which ordered pair could you remove from the relation {(–1, 0), (1, 3), (2, 2), (2, 3), (3, 1)} so that it becomes a function?
 

(1, 3) or (2, 3)

(2, 3) or (3, 1)

(1, 3) or (3, 1)

(2, 2) or (2, 3)

Answer 1

The last choice is the best answer.
One input cannot have two outputs, removing either (2, 2) or (2, 3) would make this a function

Answer 2

according to me ( 2,2 ) or ( 2, 3 ) is the answer