College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 7 - Conic Sections - Exercise Set 7.2 - Page 685: 16

Answer

Asymptotes: $y=\displaystyle \pm\frac{3}{4}x .$ Foci: $(15, 0)$ and $(-15,0)$.

Work Step by Step

The hyperbola $\displaystyle \frac{x^{2}}{a^{2}}-\frac{y^{2}}{b^{2}}=1$ has a horizontal transverse axis and two asymptotes $y=\displaystyle \frac{b}{a}x$ and $y=-\displaystyle \frac{b}{a}x$. ----------- $a=12, \quad b=9$ For the foci, $c^{2}=a^{2}+b^{2}=144+81=225$ $c=15 $ Vertices: $(12,\ 0)$ and $(-12,0)$. Asymptotes: $y=\displaystyle \pm\frac{9}{12}x =\displaystyle \pm\frac{3}{4}x .$ Foci: $($15, $0)$ and $(-15,0)$.
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