The coordinates (3,−1), (1,−3), and (5,−3) were plotted to draw a triangle on a coordinate plane. Is the polygon in Quadrant I, II, III, or IV? Answer 1 for Quadrant I, 2 for Quadrant II, 3 for Quadrant III, or 4 for Quadrant IV.

The polygon is in Quadrant III (3).