Question

I’m sorry for so many questions it’s just I’m rlly bad with graphs thank and please help me

Answer 1

No, not a function.

Explanation:

Not a function because x value give two different y value, (0,-4) and (0,4) in function you cant. you can have different x value and same y values.

Answer 2

not a function

Explanation:

This will not pass the vertical line test, so it is not a function