Answer
$x^2+y^2=49$
See graph
Work Step by Step
1. Use the relation $r^2=x^2+y^2$, we have $r=7\Longrightarrow r^2=49\Longrightarrow x^2+y^2=49$
2. See graph (polar) for the above circle with center $(0,0)$, radius$=7$ (rectangular system)
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 8 - Polar Coordinates; Vectors - Chapter Test - Page 656: 5
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
