The coordinates of the foot of the perpendicular drawn from the point (2, 5, 7) to the x-axis are
A
(0, 5, 0)
B
(0, 5, 7)
C
(2, 5, 0)
D
(2, 0, 0)
Correct Option:
D
Explanation
Every point on the x-axis has the form (x, 0, 0). The perpendicular projection of (2, 5, 7) onto the x-axis preserves its x-coordinate and makes the other two coordinates zero. Therefore the foot is (2, 0, 0).
