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which explains why the graph is not a function?
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no
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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
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