e ,  2x – 3y + 4z = 6 throughout by
29 , we get
2
3
4
6
29
29
29
29
x
y
z
−
+
+
=
This is of the form lx + my + nz = d, where d is the distance of the plane from the
origin So, the distance of the plane from the origin is 
29
6 Example 16 Find the coordinates of the foot of the perpendicular drawn from the
origin to the plane 2x – 3y + 4z – 6 = 0