SOLUTION: Please answer: Give the center and radius of the circle: {{{X^2+y^2+6x+5y=0}}}

Question 687905: Please answer:
Give the center and radius of the circle:

Answer by fcabanski(1391) (Show Source): You can put this solution on YOUR website!
The general formula for a square is where (h,k) is the center and r is the radius. To convert the given formula into the general circle formula, you complete the square.

Write the equation with x and y terms grouped:

For x and y parts, take 1/2 of the coefficient of the non squared term, square it, add it on both sides.

Write each (the x and y part) in squared form: ---->

The radius is 15.25. The center is (-3, -2.5)

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