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kupik [55]
3 years ago
15

Please help this is due really soon

Mathematics
2 answers:
Alona [7]3 years ago
6 0
Well your domain is your x and the range is your y 

the relation is a function if 
1) x has a corresponding y 
2) any one x has only one y 

think about when you graph a point  (x, y)  if the same x has two different ys' then the graph will NOT be a function because does not pass the vertical line test. Like (2,4) and (2,-4) could be touched by a vertical line. 
A. is NOT a function because x=6 has multiple y=9, y=10, y=11

B. is a function because x=4 has y=6, x=7 has y=3, x=9 has y=7!!!

C. is NOT not a function because x=5 has two y, y=6 and y=9
D. is NOTa function because x=5 has two y, y=1 and y=8


just olya [345]3 years ago
4 0
B is a function because each input only has one output
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