ANSWER
C. {(-2,-1),(0,1),(2,3)}
EXPLANATION
To write the relation as an ordered pair, we write out the coordinates of the points.
Starting from left to right, the first point has coordinates,(-2,-1).
The second point has coordinates;
(0,1)
The third point has coordinates (2,3).
Therefore the relation as ordered pair is;
{(-2,-1),(0,1),(2,3)}
The correct answer is C.
