Is it a function? Yes or No?
No
Is it a function? Yes or No?
Yes
Is it a function? Yes or No?
No
Is it a function? Yes or No?
Yes
Is it a function? Yes or No?
Yes
Is it a function? Yes or No?
Yes! No two dots line up! :)
Is it a function? Yes or No?
Yes
Is it a function? Yes or No?
YEP! No two dots line up and down
Is it a function? Yes or No?
No
Is it a function? Yes or No?
YES
Is it a function? Yes or No?
nope!
Which one is NOT a function?
First one!