SOLUTION: which is not a function y=2,x=2,y=2x,x=2y

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Question 664948: which is not a function y=2,x=2,y=2x,x=2y
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

y=2 Green Line

x=2, Black line

y=2x Blue Line

x=2y  0r  y = x/2 purple Line

All but the Black line pass the "vertical line test" for a function