Question: Under what condition on the coefficients a, b, and c does the equation x 2 + y 2 + ax + by + c =

Under what condition on the coefficients a, b, and c does the equation x² + y² + ax + by + c = 0 represent a circle?
When that condition is satisfied, find the center and radius of the circle.

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Under what condition on the coefficients a, b, and c does the equation x 2 + y 2 + ax + by + c = 0 represent a circle? When that condition is satisfied, find the center and radius of the circle.

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