Answer: x + y + z = 1.
- A x + y + z = 1
- B x + y + z = 0
- C x + y + z = 3
- D xyz = 1
Correct answer: A. x + y + z = 1
Explanation: The intercept form x/1 + y/1 + z/1 = 1 gives x + y + z = 1.
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