izzybeatsu65 izzybeatsu65 27-01-2021 Mathematics contestada Which relation is not a function? a b {(1,3), (2,4), (3,5), (4,6) (6,3). (4,7).(-6,3), (4,-1)} {(8,9), (7,9), (3,9),(4,9)} {(5,2), (3,7), (-2,4),(0,7)} С HELP PLAS