Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 9 - Test - Page 1037: 3

Answer

See graph and explanations.
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Work Step by Step

Step 1. Graph the conic section as shown in the figure. Step 2. From the equation, we can identify it is an ellipse with $a=5,b=3,c=4$, centered at $(-2,5)$. Step 3. We can find the foci at $(-2\pm4,5)$ which gives $(-6,5)$ and $(2,5)$.
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