#### Answer

Circle, r=3

#### Work Step by Step

$x^{2}+y^{2}=9$
$r^{2}=9$
$r=3$
Circle

Published by
Brooks Cole

ISBN 10:
1-28505-709-0

ISBN 13:
978-1-28505-709-5

Circle, r=3

$x^{2}+y^{2}=9$
$r^{2}=9$
$r=3$
Circle

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