> Find the ratio in which the line 3x+y-9=0 divides the line segment joining the points A(1,3) and B(2,7).
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assume the point of intersection of 2 lines as (a,b). Now substitute value of a in place of x and b in place of y in equation 3x+y-9=0. Now form an equation of line joining A and B and substitute value of a and b in place of x and y respectively. Then use section formula and find the ratio by solving the 2 equations to get the ratio.
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