Elementary Geometry for College Students (7th Edition)

Published by Cengage
ISBN 10: 978-1-337-61408-5
ISBN 13: 978-1-33761-408-5

Chapter P - Preliminary Concepts - P.3 - Informal Geometry and Measurement - Exercises P.3 - Page 23: 9

Answer

Yes, No, Yes

Work Step by Step

A line always exists between two points, so two points are always collinear. 3 points do not have to be collinear, however, for the line between the first two points does not have to go through the third point. At the same time, it is possible for three points to be collinear.
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