The equation of locus of a point whose distance from the y-axis is equal to its distance from the point (2, 1, -1) is

\[{{x}^{2}}+{{y}^{2}}-{{z}^{2}}=0\]

\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}=6\]

The equation of locus of a point whose distance from the y-axis is equ

1.	The equation of locus of a point whose distance from the y-axis is equal to its distance from the point (2, 1, -1) is
A.	\[{{x}^{2}}+{{y}^{2}}+{{z}^{2}}=6\]
B.	\[{{x}^{2}}-4x+2z+6=0\]
C.	\[{{y}^{2}}-2y-4x+2z+6=0\]
D.	\[{{x}^{2}}+{{y}^{2}}-{{z}^{2}}=0\]
Answer» D. \[{{x}^{2}}+{{y}^{2}}-{{z}^{2}}=0\]

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The equation of locus of a point whose distance from the y-axis is equal to its distance from the point (2, 1, -1) is

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