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Question

In what ratio does the x-axis divide the line segment joining the points (2,-3) and (5, 6)?

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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) in the ratio m:n, then

(x,y)=(mx2+nx1m+n,my2+ny1m+n)

Given points are: (2,3),(5,6)

Since, point is on xaxis, so y coordinate is zero.

0=m(6)+n(3)m+n
0=6m3n
6m=3n
mn=36=12
m:n=1:2

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