angelldolan angelldolan 22-06-2018 Mathematics contestada Which relation is a function? {(5, 0), (0, 1), (5, 2), (4,4)} {(0, 1), (−4, 1), (4, 2), (−4,−1)} {(1, 2), (2,4), (−1, 2), (0,3)} {(3, 2), (2,1), (−1, 2), (3,3)}