Thomas' Calculus 13th Edition

Published by Pearson
ISBN 10: 0-32187-896-5
ISBN 13: 978-0-32187-896-0

Chapter 11: Parametric Equations and Polar Coordinates - Section 11.6 - Conic Sections - Exercises 11.6 - Page 678: 28

Answer

See image: .

Work Step by Step

Divide the equation with $144$ $\displaystyle \frac{x^{2}}{16}-\frac{y^{2}}{9}=1$ When in this form, the hyperbola has foci on the x-axis: $\quad \displaystyle \frac{x^{2}}{a^{2}}-\frac{y^{2}}{b^{2}}=1\quad a=4, \ b=3$ Center-to-focus distance: $\quad c=\sqrt{a^{2}+b^{2}}=\sqrt{16+9}=5$ Foci: $\quad (\pm c, 0)=\quad (\pm 5, 0)$ Vertices: $\quad (\pm a, 0)=\quad (\pm 4, 0)$ Asymptotes: $\quad y=\displaystyle \pm\frac{b}{a}x=\pm\frac{3}{4}x$ $y=\displaystyle \pm\frac{3}{4}x$
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