College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 7 - Section 7.4 - The Hyperbola - 7.4 Assess Your Understanding - Page 537: 12


See below.

Work Step by Step

We know that $b^2=c^2-a^2$, thus $b=\sqrt{5^2-3^2}=\sqrt{16}=4$.
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