A circle has radius 3 units and its centre lies on the line \[y=x-1\]. Then the equation of this circle if it passes through point (7,3), is [Roorkee 1988]

\[{{x}^{2}}+{{y}^{2}}+8x+6y+16=0\]

\[{{x}^{2}}+{{y}^{2}}-8x-6y+16=0\]

\[{{x}^{2}}+{{y}^{2}}-8x-6y-16=0\]

A circle has radius 3 units and its centre lies on the line \[y=x-1\].

1.	A circle has radius 3 units and its centre lies on the line \[y=x-1\]. Then the equation of this circle if it passes through point (7,3), is [Roorkee 1988]
A.	\[{{x}^{2}}+{{y}^{2}}-8x-6y+16=0\]
B.	\[{{x}^{2}}+{{y}^{2}}+8x+6y+16=0\]
C.	\[{{x}^{2}}+{{y}^{2}}-8x-6y-16=0\]
D.	None of these
Answer» B. \[{{x}^{2}}+{{y}^{2}}+8x+6y+16=0\]

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A circle has radius 3 units and its centre lies on the line \[y=x-1\]. Then the equation of this circle if it passes through point (7,3), is [Roorkee 1988]

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