Question

The domain of the following relation: R: {(−4, 8), (8, 10), (5, 4), (1, 6), (5, −9)} is

{8, 10, 4, 6, −9}

{−4, 1, 5, 8}

{−4, 8, 5, 1, 5}

No domain exists

Answer 1

The domain are all your x values in { (x, y), (x2, y2), (x3, y3) ... }

Answer 2

it's also a set, so order doesn't matter, however, you cant have any duplicates, so c is obviously not correct.

Answer 3

so B? @blurbendy

Answer 4

yup, good job