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 - Section 9.6 Polar Equations of Conics - 9.6 Assess Your Understanding - Page 704: 26

Answer

$x^2-6y-9=0$, parabola.

Work Step by Step

$r=\frac{3}{1-sin\theta}$, $r-r\ sin\theta=3$, $r=3+r\ sin\theta$, $r^2=(3+r\ sin\theta)^2$, $x^2+y^2=(3+y)^2$, $x^2=9+6y$, $x^2-6y-9=0$, parabola.
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