hiii2328273 hiii2328273 29-05-2021 Mathematics contestada Which of the following sets of ordered pairs is a function? a) {(2,3) (3,4) (3,5) (5,6) } b) {(1,5) (2,6) (3,7) (4,8) } c) {(3,4) (5,7) (5,8) (7,9) }