Question

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

No domain exists

{1, 5, 6}

{3, 8, 2, 8}

{2, 3, 8}

Answer 1

domain is set of first coordinates
\[\{2,3,8\}\]

Answer 2

{2,3,8}

Answer 3

{2, 3, 8}