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Is the relation {(-2.2)(3,5)(4,2),(3,-1)} a function
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Is the relation {(-2.2)(3,5)(4,2),(3,-1)} a function

User Endrju
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No, its not. In a function, each x value has only one corresponding y value. In this relation, the x value 3 has corresponding values of both -1 and 5, which means it cant be a function.
User Alksdjg
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