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NDA2015MathematicsThree Dimensional GeometryActual

A point P(1,2,3) is one vertex of a cuboid formed by the coordinate planes and the planes passing through P and parallel to the coordinate planes. What is the equation of the plane passing through P(1,2,3) and parallel to x y -plane?

Options

  1. Ax+y=3
  2. Bx-y=-1
  3. Cz=3
  4. Dx+2 y+3 z=14

Correct answer

C. z=3

Step-by-step solution

Equation of plane passing through (1,2,3) and parallel to x y -plane is z=3 . Option (C) is correct.

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