Find the ratio in which the line segment joining the points A (3,-3) and B (-2, 7) is divided by x-axis. Also, find the coordinates of the point of division.

Our points are A (3,-3) and B (-2, 7)


Let point C(x, 0) divide the line formed by joining by the points A and B in ratio of m:n.



By section formula,


x = , y =


For point C(x, 0)


x = , 0 =


Solving for y coordinate,


0 =


7m -3n = 0


7m = 3n


=


m : n = 3 : 7


Now solving for x coordinate, with m = 3 and n = 7,


x =


x=


x = =


Hence, the coordinates of required point is C(, 0)


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