SOLUTION: find the center and radius of y^2+x^2+9y-6x-10=0

Question 175424: find the center and radius of y^2+x^2+9y-6x-10=0
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
y^2+x^2+9y-6x-10=0
:
we need to complete the squares on the x and y terms
:
adding and subtracting same terms to complete the square and to keep this an equivalent equation
:
completing square
:
combining terms on right
:
radius is square root of the right side in this form.
:
so the center is (3,-9/2) and the radius is

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