Respuesta :

12. Not a function because there are multiple outputs for a single x input.
13. Function because each input has only one output
14. Not a function because both 5 and 11 have multiple outputs.

12. domain= 4, 8, 8, 12, 12, 16, 20

range= 1, 1 ,2, 2, 3, 4, 3

it is not a function because it repeats x- values

13. x= 13, 17, 22, 25, 33

y=33, 25,  22, 25, 33

this is a function

14. x=1, 5, 5, 7, 11, 11

y= 2, 2 , 4, 6, 6, 8

this is not a function because x-value repeats itself

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