The equation of x-axis in space are

  • Option 1)

    x=0,y=0

  • Option 2)

    x=0,z=0

  • Option 3)

    x=0

  • Option 4)

    y=0,z=0

 

Answers (1)

As we learnt in the concept

Co-ordinate axes -

There are infinite points in plane we want to identify them by using three mutually perpendicular lines known as co-ordinate axes OX,OY \, and \, OZ

- wherein

 

 

Co-ordinate of a point -

Consider a point P(a,b,c) in space and drop a perpendicular from it on XY plane the algebraic length of this perpendicular is called z cordinate. Now from this point draw perpendiculars to X and Y axes, the algebraic length of these perpendiculars is known as x and y co-ordinate respectively.

- wherein

 

 y=0, Z=0


Option 1)

x=0,y=0

Option is incorrect

Option 2)

x=0,z=0

Option is incorrect

Option 3)

x=0

Option is incorrect

Option 4)

y=0,z=0

Option is correct

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