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Tell whether { (1,2) (3,4) (4,3) (2,1) } is a function.
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Tell whether { (1,2) (3,4) (4,3) (2,1) } is a function.

User Steve De Caux
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2 Answers

3 votes
I think it is 4,3 because I've seen it as one so therefore 4,3
User Sauerburger
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13 votes
Yes because all the Y s are different
User GrecKo
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