• Equation of a Circle:(x-h)^2+(y-k)^2=r^2 Points in Equation: (x,y)=(2,8) and (h,k)=(-3,4) Equation Becomes: (2--3)^2+(8-4)^2=r^2 Do the Math: (5)^2+(4)^2=r^2 25+16=r^2 41=r^2 6.403=r Hope your answer is somewhere in there.... (Feel free to correct any errors found, my last math class was a while ago....)

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