Vertical Line Test = Easy 2 Pts!! Jan 16 CC Alg I Regents #26

Do your students know this?  This is an easy 2 points

Word definition of a function: Every x must have just one unique y

Graphical definition of a function:
Does it pass the vertical line test?  If not, it is not a function.
Drawing a vertical line at x = 2, your vertical line will pass through both dots and therefore this is NOT a function.

Easy 2 points!!


Jan 2016 Alg I Regents 26 answer





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