SOLUTION: Geometry. For the floor plans given in exercise 27, determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-3,18)

Question 65627: Geometry. For the floor plans given in exercise 27, determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (-3,18).
# 27 states the following: Geometry. Floor plans for a building have the four corners of a room located at the points (2,3), (11,6), (-3,18), and (8,21). Determine whether the side through the points (2,3) and (11,6) is parallel to the side through the points (-3,18) and (8,21).

Answer by Nate(3500) (Show Source): You can put this solution on YOUR website!
Geometry. For the floor plans given in exercise 27, determine whether the side through the points (2,3) and (11,6) is perpendicular to the side through the points (2,3) and (8,21).
m[(2,3) and (11,6)] = (6 - 3)/(11 - 2) = 3/9 = 1/3
m[(-3,18) and (8,21)] = (21 - 18)/(8 + 3) = 3/11
They are not parallel.
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