\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
If \(\Vect{n}\) is a normal vector to plane \(\mathscr{P}\) and \(M\) is a point on \(\mathscr{P}\), then for any point \(A\) in \(\mathscr{P}\):