Question

The ratio in which the segment joining the points (2, 4, 5), (3, 5, –4) is divided by the yz-plane is ______.

Options

• –2:3

• 2:3

• 3:2

• –3:2

Answer 1

The ratio in which the segment joining the points (2, 4, 5), (3, 5, –4) is divided by the yz-plane is –2:3.

Explanation:

x coordinate = 0

⇒ `(2 + λ(3))/(λ + 1)` = 0

⇒ λ = `-2/3`(negative means external division)