The location of a point in a three-dimensional coordinate system can be described relative to the origin (0, 0, 0).
The point (3, -2, 1) is located 3 units to the right of the origin along the x-axis, 2 units down from the origin along the y-axis, and 1 unit above the origin along the z-axis.
The point (-2, 1, -4) is located 2 units to the left of the origin along the x-axis, 1 unit up from the origin along the y-axis, and 4 units below the origin along the z-axis