Answer
Center: $(1,-3)$; Radius: $r=3$
Work Step by Step
Equation of a circle:
$(x-h)^2+(y-k)^2=r^2~~ $ (standard form)
Center: $(h,k)$; Radius: $r$
$(x-1)^2+(y+3)^2=9$
$(x-1)^2+[y-(-3)]^2=3^2$
$h=1$, $k=-3$, $r=3$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.1 - Graphs of Equations - 1.1 Exercises - Page 79: 69
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