If the line \[x+2by+7=0\] is a diameter of the circle \[{{x}^{2}}+{{y}^{2}}-6x+2y=0\], then \[b=\] [MP PET 1991]

If the line \[x+2by+7=0\] is a diameter of the circle \[{{x}^{2}}+{{y}

1.	If the line \[x+2by+7=0\] is a diameter of the circle \[{{x}^{2}}+{{y}^{2}}-6x+2y=0\], then \[b=\] [MP PET 1991]
A.	3
B.	-5
C.	- 1
D.	5
Answer» E.

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If the line \[x+2by+7=0\] is a diameter of the circle \[{{x}^{2}}+{{y}^{2}}-6x+2y=0\], then \[b=\] [MP PET 1991]

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