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Question

Answer the given question with proper steps.
Q.15. Find the ratio in which 2x - 3y + 5 = 0 divides the line segment joining (1, 3) and (5, 4).

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Solution

Dear student
Let the coordinates be P(x,y).Let the ratio be m:n in which the line 2x-3y+5=0divides the line segment joining the points (1,3) and (5,4)Since this point P lies on the line joining the points (1,3) and (5,4) and divide the line segment in the ratio m:n.So, the co-ordinates of point P arex=5m+nm+n and y=4m+3nm+n [By section formula]Since this point P also lies on the given line 2x-3y+5=0,so it must satisfy the equation of this line.So,25m+nm+n-34m+3nm+n+5=010m+2n-12m-9n+5m+5n=03m-2n=0mn=23Hence m:n=2:3
Regards

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