SOLUTION: Find the center (h,k) and radius r of the circle. Graph the circle: x�+y�-4x-2y-20=0

SOLUTION: Find the center (h,k) and radius r of the circle. Graph the circle: x�+y�-4x-2y-20=0

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Question 969661: Find the center (h,k) and radius r of the circle. Graph the circle:
x�+y�-4x-2y-20=0

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

...complete squares

so, , and the center is at (, )

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