P = ((mx₂ + nx₁)/(m+n), (my₂ + ny₁)/(m+n))
P = ((mx₂ − nx₁)/(m−n), (my₂ − ny₁)/(m−n))
Section formula finds the coordinates of a point dividing a line segment in a given ratio.
Internal division occurs when the point lies between the two endpoints of the line segment.