Question
The ratio in which the plane 2x - 1 = 0 divides the line joining (-2,4,7) and (3, -5, 8) is
Answer: Option D
:
D
Let the required ratio be k:1, then the coordinates of the point which divides the join of the points (-2, 4, 7) and (3, -5, 8) in this ratio are given by (3k−2k+1,−5k+4k+1,8k+7k+1)
As this point lies on the plane 2x - 1 = 0.
(3k−2k+1=12⇒k=1) and thus the required ratio as 1:1.
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:
D
Let the required ratio be k:1, then the coordinates of the point which divides the join of the points (-2, 4, 7) and (3, -5, 8) in this ratio are given by (3k−2k+1,−5k+4k+1,8k+7k+1)
As this point lies on the plane 2x - 1 = 0.
(3k−2k+1=12⇒k=1) and thus the required ratio as 1:1.
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