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Question

The coordinates of the point which divides the line segment joining the points (6,3) and (4,5) in the ratio 3:2 Internally is (0,k5). Find k

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Solution

Using the section formula, if a
point (x,y) divides the line joining the points (x1,y1) and (x2,y2) internally in the ratio m:n, then
(x,y)=(mx2+nx1m+n,my2+ny1m+n)
Substituting (x1,y1)=(6,3) and (x2,y2)=(4,5) and m=3,n=2 in the section formula, we get
the point P =(3(4)+2(6)3+2,3(5)+2(3)3+2)=(0,215)


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