Answer
ellipse.
Work Step by Step
From the given equation, we have $A=3, C=10$, thus $A\ne C, AC\gt0$ and the equation is an ellipse.
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 10 - Analytic Geometry - Test - Page 1004: 16
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