Which sets of ordered pairs represent relations that are functions? you may choose more than one correct answer
{(1, 0), (2,0), (3, .0))
(2,3), (2,,5), (2, 6)}
{(1, 1), (2, 2), (3, 3), (4,4)}
{(1,3), (-1,4). (1.4). (-1,3)}
[(6-, 6), (5.-,5)}