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If two points are A(x_(1),y_(1)) and B(x_(2),y_(2)), then the co-ordinates of the point P, which divides the line segment in the ratio m_(1) : m_(2) (internally), are given by : x=(m_(1)x_(2)+m_(2)x_(1))/(m_(1)+m_(2)), y=(m_(1)y_(2)+m_(2)y_(1))/(m_(1)+m_(2)) Find the co-ordinates of the point P, which divides (i) internally (ii) externally the line joining (1,-3) and (-3,9) in the ratio 1 : 3. |
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Answer» `(II) (3,-9)` |
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