Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10:
ISBN 13:

Chapter 1 - Section 1.2 - Informal Geometry and Measurement - Exercises - Page 17: 9

Answer

Yes; No; Yes

Work Step by Step

Two points will always connect into a line, so two points are always collinear. Three or more points are not always collinear, as the third point may lie outside of the line that connects the first and second point. It's possible for three or more points to be collinear the points are aligned into a straight line.
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