Question

Determine whether the relation in the table below is a function, and if so, write a function rule.
x
y
-1
-2
0
0
2
4
3
6

Answer 1

Do you know what makes a function a function?

Answer 2

In a function, every input(x) has EXACTLY ONE output(y).

How ever an output(y) can go to more than one input(x)

Answer 3

This IS a function. Every X has EXACTLY ONE y.