Question

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

{−3, −3, 1, 6}

{−4, −2, 2, 2}

{−4, −2, 2}

{−3, 1, 6}

Answer 1

do you know what a domain is ?

Answer 2

noo

Answer 3

a domain is just a set of input values! (or x co-ordinates)
like input value of (10,20) is just 10

so, what is input value of (6,-2) ?

Answer 4

umm 6? aha

Answer 5

correct!

Answer 6

what about others ??
(1, 2), (−3, −4), (−3, 2)

Answer 7

um ugh idkk

Answer 8

for (1,2) what is x co-ordinate ?

Answer 9

idk how to do any of this that's why im asking..

Answer 10

so now, what is x- co-ordinate of (1,2) ?