Elementary Geometry for College Students (6th Edition)

Published by Brooks Cole
ISBN 10: 9781285195698
ISBN 13: 978-1-28519-569-8

Chapter 10 - Review Exercises - Page 486: 38


(a) A direction vector is $(4,2,3)$ (b) $(x,y,z) = (-1,2,4)+n(4,2,3)$

Work Step by Step

(a) We can find a direction vector: $P_2-P_1 = (3,4,7) - (-1,2,4) = (4,2,3)$ A direction vector is $(4,2,3)$ (b) We can find an equation for this line: $(x,y,z) = (-1,2,4)+n(4,2,3)$, where $n$ is a real number
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.