Pre-Algebra Quiz
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FUNCTIONS
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Three students are analyzing whether the relation {(−2,4),(0,1),(3,4),(5,1),(−2,7)} is a function. Their reasoning is shown below:
Student A: "It's not a function because 4 and 1 each appear twice as y-values."
Student B: "It's not a function because -2 appears twice as an x-value with different y-values."
Student C: "It's a function because all the ordered pairs are written correctly."
Which student's reasoning is correct?
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