Question

The domain of the following relation: R: {(−4, 3), (3, 6), (−2, 1), (3, 6)} is

{1, 3, 6}
{−4, 3, −2, 3}
{−4, −2, 3}
No domain exists

Answer 1

The domain is basically the (x) coordinate of any function/ordered pair. In this case, it would be -4/3/-2. You only have to list them once.

Answer 2

Is this answer good?