1.

The line segment joining the points (-3, -4) and (1, -2) is divided by y-axis in the ratio A. 1 : 3 B. 2 : 3 C. 3 : 1 D. 3 : 2

Answer»

Let the points (− 3, − 4) and (1, − 2) be divided by y-axis at (0, t) in the ratio m:n.

 ∴ \(\Big(\frac{m-3n}{m+n},\frac{-2m-4n}{m+n}\Big) \) = (0,t)

⇒ 0 = \(\frac{m-3n}{m+n}\) 

⇒ m:n = 3:1



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