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Is this set of ordered pairs a function or not a function?
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Is this set of ordered pairs a function or not a function?

Is this set of ordered pairs a function or not a function?-example-1
User Ayyoudy
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1 Answer

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It is not because your input (the x-values) has more than one output (the y-values)
(2, -4) and (2, 4) have the same x1value and that is why this is not a function
User Rodolfo Grave
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