The coordinates (9,-2), (12,-5) and (5,-7) were plotted on a coordinate plane, and a polygon was drawn. 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 I.
To determine this, look at the signs of the x and y coordinates of each point. In Quadrant I, both x and y are positive.
Point (9,-2): x is positive, y is negative (Quadrant IV or III)
Point (12,-5): x is positive, y is negative (Quadrant IV or III)
Point (5,-7): x is positive, y is negative (Quadrant IV or III)
Since all points have positive x values and negative y values, the polygon must be in Quadrant I.