The lower left corner of a rectangular window is located at coordinates (3, 2, 1). The upper left corner is at (3, 2, 4)

[answerhappygod]

The lower left corner of a rectangular window is located at
coordinates (3, 2, 1). The upper left corner is at (3, 2, 4) and
the lower right corner at
(0, 3, 1). A woman is on point (4, 4, 2) and a man on point (-2,
-2, 3).
a) Find a parametrization of the window.
b) If the window is surrounded by an opaque wall, does the woman
see the man?