lovedixie lovedixie 23-10-2018 Mathematics contestada HELP ASAP!!! Is each of the following a function? yes or no1: (2,1) (4,3) (6,5) (8,7)2: (2,1) (4,3) (6,5) (2,7)3: (2,1) (4,1) (6,5) (8,7)