Three Dimensional Geometry Question 16

Question: The equation to the straight line passing through the points (4, -5, -2) and (-1, 5, 3) is

[MP PET 2003]

Options:

A) $ \frac{x-4}{1}=\frac{y+5}{-2}=\frac{z+2}{-1} $

B) $ \frac{x+1}{1}=\frac{y-5}{2}=\frac{z-3}{-1} $

C) $ \frac{x}{-1}=\frac{y}{5}=\frac{z}{3} $

D) $ \frac{x}{4}=\frac{y}{-5}=\frac{z}{-2} $

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Answer:

Correct Answer: A

Solution:

From $ \frac{x-x_1}{x_2-x_1}=\frac{y-y_1}{y_2-y_1}=\frac{z-z_1}{z_2-z_1} $ , we get $ \frac{x-4}{1}=\frac{y+5}{-2}=\frac{z+2}{-1} $ , which is the required straight line.