Question

<3 Help.
Q: Which is not a function?
posting pictures! :)

Answer 1

done

Answer 2

First one is a function as it satisfies the basic criteria for being called a function
function-the elements of the domain should have a unique and one, only image in the codomain..

Answer 3

like the answer is the last one.
: math 5 attachment?

Answer 4

A function is when you have exactly one domain value that corresponds to one range value. The domain can be looked at as a n "x" value and the range as your "y" value

Answer 5

the second one is also a function due to same reason