Coordinate Geometry - Finding the Centre and Radius of a Circle

Coordinate Geometry - Finding the Centre and Radius of a Circle

TGM Original Questions

Find the centre and radius of a circle that has the equation \(\left( 2x+6 \right)\left( x+3 \right)+\left( 2y+2 \right)\left( y-7 \right)=0\).

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Answer:Centre \(= (-3,3) \); Radius \(= 4\)

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