CLUE: The opposite sides of a parallel-
ogram are equal and parallel. Parallel
lines have equal slopes.
(-4,-3),(2,-3).
m1=(-3-(-3))/(2-(-4))=0
(L1)^2 = (2+4)^2 + (-3+3)^2 = 36,
L1=6.
(4,-6),(-4,-6).
m2 = (-6-(-6))/(-4-4) = 0.
(L2)^2 = (-4-4)^2 + (-6+6)^2 = 64,
L2 = 8.
This is not a parallelogram, because
the opposite sides are not equal.
This can also be proven graphically by
graphing the 4 points.
The quadrilateral with these following vertices is a parallelogram. (-4, -3), (2, -3), (4, -6), (-4, -6)
True
False
2 answers
Given A (-6,4) and M(-1, -1) find B.