Question

Which one of the following planes contains the z-axis?

• A. x - z = 0
• B. z + y = 0
• C. 3x + 2y = 0
• D. 3x + 2z = 0

Answer 1

Answer: (C)

The equation of plane which contains z-axis is 3x + 2y = 0 as z is absent in this equation.