Respuesta :

Astute
Hey there!

(Functions)

(2,3), (6,-5),(-1,3)
(7,-4), (0,9),(2,-2)
(-6,5),(-5,6),(8,2)

(Not Functions)

(1,9),(-3,-2),(1,-4)
(0,3),(0,7),(4,0)

I hope this helps you!