SOLUTION: Is {(1,1),(2,1),(2,2) and (1,2)} a function?

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Question 65292: Is {(1,1),(2,1),(2,2) and (1,2)} a function?
Answer by funmath(2933) About Me  (Show Source):
You can put this solution on YOUR website!
Is {(1,1),(2,1),(2,2) and (1,2)} a function?
No, x=1 has two different y's, 1 and 2. That's enough to say it's not a function, but x=2 has two different y's also, 1 and 2.
Happy Calculating!!!