Q2 of 112 Page 168

The point P which divides the line segment joining the points A(1,– 3)and B(–3, 9) internally in the ratio 1:3 is

Here P divides the line segment joining the points A(1,– 3)and B(–3, 9) internally in the ratio 1:3 .


Therefore coordinates of P are


;where k1 and k2 are the ratio in which the line is divided.


Now we substitute the values :


∴


⇒


⇒


⇒ xp = 0,yp = 0

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