L is the foot of the perpendicular drawn from a point P (6, 7, 8) on the xy-plane. What are the coordinates of
L is the foot of the perpendicular drawn from a point P (6, 7, 8) on the xy-plane. What are the coordinates of point L?
(A) (6, 0, 0)
(B) (6, 7, 0)
(C) (6, 0, 8)
(D) none of these
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Since L is the foot of perpendicular from P on the xy-plane, z-coordinate is zero in the xy-plane. Hence, coordinates of L are (6, 7, 0).
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