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📐 Mathematics  ·  Introduction to Three Dimensional Geometry  ·  JEE

A point lying on the x-axis has coordinates of the form:

Answer: (x, 0, 0).

  • A (0, y, 0)
  • B (0, 0, z)
  • C (x, y, 0)
  • D (x, 0, 0)

Correct answer: D. (x, 0, 0)

Explanation: On the x-axis both the y and z coordinates vanish, leaving (x, 0, 0).

zxyOP(x, y, z)first octant:x>0, y>0, z>0

Concept context

Coordinate axes and planes in space, octants, distance between two points, and the section formula

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