Question

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

Answer 1

Given:
  3, -2
  1,  2
-1, -4
-1,  2

The format is (x,y)

The domain is all the x-values while range is all the y-values.

domain: (3,1, -1,-1) 2nd option given.