Answer
$conic$, $focus$, $directrix$.
Work Step by Step
The text describes the definition of a $conic$, where the fixed point is called the $focus$, and the fixed line is called the $directrix$.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
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: 3
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