Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 11 - Additional Topics - 11.2 - 3 x 3 Systems of Equations - Concept Quiz 11.2 - Page 483: 4

Answer

True

Work Step by Step

When two planes are parallel, they will have the same slope, by definition. In addition, any line in a plane has the same slope as the plane. Therefore, because any line in a plane has the same slope as the plane, any two lines in parallel planes will have the same slope, meaning that they will be parallel.
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