Answer
hyperbola.
Work Step by Step
From the given equation, we have $A=4, C=-9$. Thus $AC=-36\lt 0$, which indicates a hyperbola.
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 9 - Review Exercises - Page 1036: 42
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