SOLUTION: question 22 page 64 http://ebooks.maconk12.org/Geometry/docs/chap02.pdf

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Question 488433: question 22 page 64
http://ebooks.maconk12.org/Geometry/docs/chap02.pdf
Answer by cleomenius(959) About Me  (Show Source):
You can put this solution on YOUR website!
I would follow the example of page 62.
The slope of pointa A and B is (1-(-11))/ 2 - (-2) ) = 3.
The slope of points B and C is (10 - 1)/ (5 - 2) = 3.
Since the slopes are equal, the three points are collinear.
Cleomenius.