kitsybear2014
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  • 10-04-2019
  • Mathematics
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Why can't a vertical line intersect a function more than once?

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  • 10-04-2019

A function can only have one output, y, for each input which would be x. If a vertical line intersects a cure more than once then for one value of x the curve would have more than one value of y which wouldn't represent a function.

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