If one of the lines represented by the equation \[a{{x}^{2}}+2hxy+b{{y}^{2}}=0\] be \[y=mx\], then [UPSEAT 1999]

If one of the lines represented by the equation \[a{{x}^{2}}+2hxy+b{{y

1.	If one of the lines represented by the equation \[a{{x}^{2}}+2hxy+b{{y}^{2}}=0\] be \[y=mx\], then [UPSEAT 1999]
A.	\[b{{m}^{2}}+2hm+a=0\]
B.	\[b{{m}^{2}}+2hm-a=0\]
C.	\[a{{m}^{2}}+2hm+b=0\]
D.	\[b{{m}^{2}}-2hm+a=0\]
Answer» B. \[b{{m}^{2}}+2hm-a=0\]

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If one of the lines represented by the equation \[a{{x}^{2}}+2hxy+b{{y}^{2}}=0\] be \[y=mx\], then [UPSEAT 1999]

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