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: $r$ $(x-1)^2+(y+3)^2=9$ $(x-1)^2+[y-(-3)]^2=3^2$ $h=1$, $k=-3$, $r=3$
You can help us out by revising, improving and updating this answer.Update this answer
After 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.