Question

Which of the following relations has a domain of {-4, -2, 1)?

O {(1, 2), (-2, 3), (4, 6)}
O {(1, 2), (-2, 2), (-2, 4), (4, -4)}
O {(1,2), (-2, 2), (-2, 4), (-4,4)}
O None of the other answers are correct
O {(-1, 2), (4,3).(-2, 6), (-2,3)}

Answer 1

Third answer option

{(1,2), (-2, 2), (-2, 4), (-4,4)}

Explanation:

If the Domain is the set = { -4, -2, 1}, we need a relationship that shows pairs with first coordinates as described below:

(-4, ...) , (-2, ...) and (1, ...)

which we find in the third option shown:

{(1,2), (-2, 2), (-2, 4), (-4,4)}