Question

The domain of the following relation: R: {(3, 5), (8, 6), (2, 1), (8, 6)} is
Answer







{3, 8, 2, 8}








{2, 3, 8}








{1, 5, 6}








No domain exists

Answer 1

that would be the first values of ordered pairs 3 8 2 8 ... put it in set