Question 162321
(0,-9), (3,-9), and (0,-2)
PLOT THESE THREE POINTS AND YOU'LL HAVE A RIGHT TRIANGLE WITH THRE FOLLOWING DIMENSIONS.
X DISTANCE=3-1=3 THIS IS THE BASE OF THE RIGHT TRIANGLE.
Y DISTANCE=9-2=7 THIS IS THE HEIGHT OF THE RIGHT TRIANGLE.
AREA=BH/2
AREA=3*7/2=21/2=10.5 IS THE AREA.