Answer: 5.
- A 5
- B √29
- C √13
- D 2
Correct answer: A. 5
Explanation: Distance from the x-axis = √(3² + 4²) = 5.
Three mutually perpendicular axes x, y, z meeting at the origin O, with a point P located by its (x, y, z) coordinates.
Concept context
Lines and planes in 3D space, direction cosines, distances, and angles