State the domain of the relation. a) {1, 2, 3, 3, 4, 5} b) {−3, −1, 1, 2, 3} c) {0, 1, 2} d) {−2, −1, 0, 1, 2}

The domain is read from the horizontal axis.
{-2; -1; 0; 1; 2}
D)

For this case we have the following pairs ordered reading from left to right:
 P1 = (-2, 1)
 P2 = (-1, 2)
 P3 = (0, 3)
 P4 = (1, 3)
 P5 = (2, 4)
 P6 = (2, 5)
 To find the domain of the function, we must read the x coordinate of the ordered pairs.
 We have then that the domain of the function is:
 x = {-2, -1, 0, 1, 2}
 
 The domain of the relation is:
 D) {-2, -1, 0, 1, 2}