westmoreland westmoreland
  • 25-02-2018
  • Mathematics
contestada

Domain -9,9,93 and Range -1,-5,9,9 is this a function

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Mistystar4881
Mistystar4881 Mistystar4881
  • 25-02-2018
It is not a function because if you graph it, it does not pass the vertical line test in which there should be no more than one point on a vertical line. 

Also, another way to check is to make sure that in the domain one number does not appear more than once in the list. 

Hope this helps!
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