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)