J = (-3, 2) K = (4, -1) L = (2, -5) M = (-5, -2)
Slope is rise over run:
JK = [tex]\frac{2-(-1)}{-3-4}[/tex]
= [tex]-\frac{3}{7}[/tex]
LK = [tex]\frac{-5-(-1)}{2-4}[/tex]
= [tex]\frac{4}{2}[/tex]
= 2
ML = [tex]\frac{-2-(-5)}{-5-2}[/tex]
= [tex]-\frac{3}{7}[/tex]
MJ = [tex]\frac{-2-2}{-5-(-3)}[/tex]
= [tex]\frac{4}{2}[/tex]
= 2
JK || ML and LK || MJ
JKLM is a parallelogram because both sides of opposite sides are parallel.
