Respuesta :

3colorfulrainbows

Answer:

The first one

Step-by-step explanation:

They have 2 outputs for the same input

A.

A function cannot have the more than one of the same x-values (x= 2 y=4, x=2 y=5), but you can have more than one of the same y-value as long as it’s a diff x-value (x=2 y=5, x=3 y=5)