Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 9 - Analytic Geometry - Chapter Test - Page 720: 1

Answer

hyperbola, center $(-1,0)$, vertices $(-3,0),(1,0)$, foci $(-1-\sqrt {13},0),(-1+\sqrt {13},0)$, and asymptotes $y=\pm\frac{3}{2}(x+1)$

Work Step by Step

1. Given $\frac{(x+1)^2}{4}-\frac{y^2}{9}=1$, we can identify the equation as a hyperbola with a horizontal transverse axis, center $(-1,0)$, 2. We have $a=2, b=3$ and $c=\sqrt {a^2+b^2}=\sqrt {13}$, thus vertices $(-3,0),(1,0)$, foci $(-1-\sqrt {13},0),(-1+\sqrt {13},0)$, and asymptotes $y=\pm\frac{3}{2}(x+1)$
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