Question

State which of the following ordered pairs is a function.

Set A: (-1, 0), (-2, 1), (4, 3), (3, 4)
Set B: (1, 4), (2, 3), (3, 2), (4, 1)
Set C: (2, 1), (3, 2), (2, 3), (1, 4)
a.
Set A
b.
Set B
c.
Both Set A and Set B
d.
Set C

Answer 1

C

Answer 2

Set c is not because for x=2 there are two y values