Multivariable Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 0-53849-787-4
ISBN 13: 978-0-53849-787-9

Chapter 12 - Vectors and the Geometry of Space - 12.5 Exercises - Page 848: 20

Answer

Parallel

Work Step by Step

The coefficients of the parameter give the direction of a line in a parametric equation. Directional vector for line 1 is: $\lt-12,9,-3\gt $ and for line 2 is: $\lt8,-6,2\gt$. Directional vector for line 1 is: $\lt-12,9,-3\gt$ can be re-written as $-\frac{3}{2}\lt8,-6,2\gt$ Both lines are multiples of each other, so the lines are parallel. Thus, the lines are in parallel.
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