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COLLINEAR POINTS
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COLLINEAR POINTS. 1. If then and are parallel. 2. If 2 parallel lines have ... Prove that the points A(1,3), B(5,5) and C(13,9) are collinear and find the ratio ... – PowerPoint PPT presentation
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Title: COLLINEAR POINTS
1
COLLINEAR POINTS
1. If then and
are parallel
2. If 2 parallel lines have a point in common
then the points are collinear
2
BC is parallel to AB and, since B is a common
point, the points A,B and C are collinear
The ratio is found by comparing
x components (or y components) of the vectors
Exercise 13I
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