SOLUTION: When asked whether the relation {(-4,16), (-2,4), (0,0), (2,4)} is a function, a student stated that the relation is not a function because 4 appears twice. What error did the

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Question 832922: When asked whether the relation
{(-4,16), (-2,4), (0,0), (2,4)} is a function, a student stated that the relation is not a function because 4 appears twice. What error did the student make? How would u explain to the student why this relation is not a function.

Answer by Fombitz(32388)   (Show Source): You can put this solution on YOUR website!
The relation is a function.
There is a unique y value for each x value.

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