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Is this a function or not?

Is this a function or not?
asked 76.6k views
22 votes
Is this a function or not?

Is this a function or not?-example-1
asked
User Mitsuruog
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7.8k points

1 Answer

8 votes
no! if two points are on top of each other its not a function! it doesnt pass the "vertical line test"
answered
User Jay Lu
by
8.1k points
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