Answer
ellipse
Work Step by Step
The coefficients of $x^2$ and $y^2$ have the same sign but are not equal thus the equation defines an ellipse.
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 10 - Section 10.3 - The Hyperbola - Concept and Vocabulary Check - Page 786: 10
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