Does this graph show a function? Explain how you know.

The graph shown above does not represent a function.
If the curve of the graph is to the right or left, it does not represent a function because an x-value will have only two different y-values that corresponds to it, which is not a characteristic of a function.
The graph shown has the curve with the tip to the right, this means, for example, x-value of 5 has two different y-values of -4 and 4.
Therefore, the graph is not a function.
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