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Laura & Mary are doing their homework together. Mary thinks the relation {(1, 1), (1, 3), (2, 3), (3, 4)} is a function, but Laura doesn’t think it is. Who is correct and why?
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Laura & Mary are doing their homework together.

Mary thinks the relation {(1, 1), (1, 3), (2, 3), (3, 4)} is a function, but Laura doesn’t think it is.

Who is correct and why?

User Gass
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1 Answer

5 votes
The relation is not  a function because the x repeats twice.
User Amir Koklan
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6.4k points
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