Answer
One or two vertical lines or an empty set.
Work Step by Step
The vertical traces of elliptic and parabolic cylinders consist of one or two vertical lines or an empty set.
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 13 - Vector Geometry - 13.6 A Survey of Quadratic Surfaces - Exercises - Page 693: 43
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