Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 9 Quadratic Relations and Conic Sections - 9.6 Translate and Classify Conic Sections - 9.6 Exercises - Skill Practice - Page 655: 14



Work Step by Step

If the center of a circle is at $(h,k)$ and its radius is $r$, then the equation of it is: $(x-h)^2+(y-k)^2=r^2$ Hence here the equation is: $(x-9)^2+(y+1)^2=4$
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