2
Which of the following does NOT represent a function?
Show Your Work
{(3, 1), (5,2), (7,3), (9, 2)}
{(4,1),(6,3), (9,6). (15,3)}
{(5, 1), (6,2), (7,3), (11,7)}
{(4,Q)
, (4, 1), (5,2), (6,3)}