Question

The range 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}

Answer 1

When asked for "range" think "what can y be".
The y values in your set of (x,y) pairs are -2 2 -4 and 2
so the last choice is correct

Answer 2

Domain: "What can x be?"
Range: "What can y be?"