Three Dimensional Geometry Question 112

Question: A point (x, y, z) moves parallel to xy?plane. Which of the three variables x, y, z remain fixed

Options:

A) z

B) y

C) x

D) x and y

Show Answer

Answer:

Correct Answer: A

Solution:

Equation of any plane parallel to xy-plane i.e., $ z=0 $ is $ z=K. $