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In the space the equation by+cz+d=0 repr...

In the space the equation `by+cz+d=0` represents a plane perpendicular to the plane

A

x-axis

B

y-axis

C

z-axis

D

None of these

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The correct Answer is:
A
Direction cosines of the normal to the given plane
`by+cz+d=0 are 0,b,c`
Direction cosines of the x-axis are 1,0,0
Since, `0xx1+bxx0+cxx0=0`
Hence x-axis is perpendicular to normal to the given plane. Therefore x-axis is parallel to the given plane.
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