Which items below represent a function?
1) x = y
2) (2, 3), (5, 7), (-2, 1), (5, 3)
3) x = 3
4) y = 9
5) (7, 1), (1, 7), (7, 2), (2, 1)
6) 8x - 5y = 12

Question

Which items below represent a function?
1) x = y
2) (2, 3), (5, 7), (-2, 1), (5, 3)
3) x = 3
4) y = 9
5) (7, 1), (1, 7), (7, 2), (2, 1)
6) 8x - 5y = 12

godlovesme · Answer

if an x value is used more than once it's NOT a function that's for ordered pairs

anonymous · Answer

I know that, but I need help with it. My class didn't go this in depth with it. I only know that 2 is a function, and 3 and 5 are not

godlovesme · Answer

that's correct :) i'm not really good at functions tbh but graphing helps here check out this link https://web.geogebra.org/app/#

anonymous · Answer

Anyone else that could possibly help?

anonymous · Answer

Thanks for the link Godlovesme, I was able to graph them and do a vertical line test

godlovesme · Answer

Thanks for the medal  & np

anonymous · Answer

Your welcome!