Respuesta :

Answer:

No this is not a function because the x-values repeat. In a function you can have the the output duplicate but not the input. The input at 3 has duplicates s o this is not a function.

Step-by-step explanation:

Definition

A relation is called to be a function if every domain has an unique range

  • f(x)=y

Here

  • f(3)=-9,4

As

f(3) has 2 corresponding values it's not a function