mjbelt1217 mjbelt1217 20-01-2021 Mathematics contestada What is the domain of the following relation? {(-1,2) (2, 51) (1,3) ( 8,22) (9 , 51)} a) -1, 2, 1, 8, 9 b)2, 51, 3, 22, 51 c)need more information