The Graph is a didactic and practical tool that is intended to serve as a representative support for a mathematical operation. If in an explanation a graph is used as a support resource, it will give more precise information and corroborate what is said. A graph is a demonstration by means of images, bars of different sizes or objects of different color or shape. A graph indicates a partition of a whole, elaborated as a percentage, a perfect division of goods or resources can be obtained.
In all types of profession, the use of the graph to demonstrate changes or fluctuations is already routine, since its application in the business world has been well received. With a graph, people can simply state situations, through captions.
The graphs exist in many ways, the simplest consist of a real line in which the edges serve as a setting instrument and in the middle, starting from the base of the line, bars are displayed up to the corresponding height according to the contained variable in the parallel rule, it is very easy to perform and reflects separate and exact quantities. Another common one is the "Cake" type circular graph in which the partition happens in the way in which a circular cake is chopped, the different colored triangles that emerge from the model will represent the evaluated quantity together with their respective legend.
On the other hand, there are the graphs of time and another variable, in which a continuous and oblique line walks over a real line whose variable is a unit of time, in it, the growth or decrease of the other variable is reflected through the elapse of time.
As mentioned above, graphics are used in any field, in which it is necessary to represent and expose a divided amount, however, there are subjects that use graphics a little more, such as economics, business administration, accounting and everything related to money, since charts are a precise tool, ideal for handling something as delicate as money.
