SOLUTION: Write the equation of the circle whose center is (-2,-1) and radius is 2(sqrt[3])

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Question 730327: Write the equation of the circle whose center is (-2,-1) and radius is 2(sqrt[3])
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
Equation of a circle whose center is at (h,k) is:
%28x-h%29%5E2%2B%28y-k%29%5E2=r%5E2....This referrers to the "center-radius form". It may also be referred to as "standard form".
given:
center is at (h,k) = (-2,-1)
and r=2sqrt%283%29
plug given values in formula

%28x-%28-2%29%29%5E2%2B%28y-%28-1%29%29%5E2=%282sqrt%283%29%29%5E2

%28x%2B2%29%5E2%2B%28y%2B1%29%5E2=4%2A3

%28x%2B2%29%5E2%2B%28y%2B1%29%5E2=12