SOLUTION: What is the radius of the circle (x - 1)^2 + (y + 1)^2 = 12?

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Question 346525: What is the radius of the circle (x - 1)^2 + (y + 1)^2 = 12?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Compare to the general equation for a circle centered at (h,k) with a radius R:
%28x-h%29%5E2%2B%28y-k%29%5E2=R%5E2
(h,k)=(1,-1)
R%5E2=12
highlight%28R=2sqrt%283%29%29