Question

The range of the following relation R {(3, −5), (1, 2), (−1, −4), (−1, 2)} is

{−1, 1, 3}
{−5, −4, 2}
{−1, −1, 1, 3}
{−4, −5, 2, 2}

Answer 1

i think its b

Answer 2

You thought correctly.
The y-coordinates of the pairs, without duplication.

Answer 3

range is the lowest y value