Question

In Cartesian coordinate system, the three planes x, y, and z are_____________ to each other.

Select one:
a. parallel
b. mutually perpendicular
c. oblique
d. none of these​

Answer 1

Answer:

b is the correct answer..........

Answer 2

b. mutually perpendicular.

they can't be parallel cause if they did it would have been as good as a single dimension.(imagine living life along a single line.)

hence they are mutually perpendicular. this makes each plane indipendent.