Which explains why the graph is not a function?
It is not a function because the points are not connected
to each other.
It is not a function because the points are not related by
a single equation.
It is not a function because there are two different x-
values for a single y-value.
It is not a function because there are two different y-
values for a single x-value.
-5 -4 -3 -2
-1
1 2
3
4
5
X