The falling action of a plot in Geometry occurs at the climax, and it falls because of the structure of the equation which consists of the variables in between which the graph is plotted. In geometry, graphs are commonly used in coordinate geometry which is a domain of analytical geometry.
The coordinate geometry makes use of geometrical plane, and one uses a set of equations to plot the data on these coordinate plans. The data plots are then compared in order to deduce relevant and important information out of them, for other purposes such as scientific decision making and/or research.