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

do you know what a function is?

Answer 2

the definition?

Answer 3

you there?

Answer 4

Kinda, refresh my memory lol

Answer 5

to be a function a relation must have only one output for each input. different inputs can have the same output but each can only have one. this is where the vertical line test comes from. look: