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Is {(1,9), (-3,4), (1, -7)} a function?
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Is {(1,9), (-3,4), (1, -7)} a function?

User Yarin Miran
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1 Answer

1 vote
No. Because it repeats 1(aka the domain) twice. When there is two same x values than isn’t a function.
User Joe Landsman
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