Precalculus (10th Edition)

Published by Pearson
ISBN 10: 0-32197-907-9
ISBN 13: 978-0-32197-907-0

Chapter 10 - Analytic Geometry - 10.3 The Ellipse - 10.3 Assess Your Understanding - Page 656: 10


the major axis is the x-axis, $a=5$, $b=3$

Work Step by Step

The equation of the ellipse here has the form $\frac{x^2}{a^2}+\frac{y^2}{b^2}=1$, where $a\gt b\gt0$, hence the major axis is the x-axis, $a^2=25\\a=\sqrt{25}=5$, $b^2=9\\b=\sqrt{9}=3$
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