Which explains why the graph is not a function?
It is not a function because the points are not connected
to each other.
o 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 -
values for a single y-value.
© It is not a function because there are two different y
values for a single x-value.
N
1 +
++→
1 2 3 4 5 X
-5 4 -3 -2 -11
-2+
13t
-4+
-5