Question

Which of the following does not represent a function?


x 8 7 9 5 2
y 2 4 5 −5 4

x 2 5 6 5 2
y 1 2 3 4 5

x −4 −5 −6 −7 −8
y 4 5 6 7 8

x 0 2 3 4 8
y 1 3 5 4 7

Answer 1

I think the second one