Question

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

{−1, −1, 1, 3}

{−4, −2, 2, 2}

{−4, −2, 2}

Could someone explain how they got the answer as well? I'm new to this subject and don't get what a domain is.

Answer 1

The domain is the set of all allowed inputs or x values.

Answer 2

So, it would be {-1, 1, 3}?

Answer 3

you nailed it

Answer 4

Thanks!

Answer 5

yw