Forms of Presentation: -By means of lines that can be continuous, columns or bars, whose main characteristic is that the lengths or heights of these symbols are proportional to the figures they represent. -By areas or surfaces, such as circles, squares, rectangles, or triangles; in which the area of these geometric figures are proportional to the magnitudes they compare. -By volumes, for this, cubes or spheres are used; the volume of these bodies are proportional to the values they represent.
The graph or diagram consists of the following components:
-Coordinate system, -Scale, -Arithmetic scale, -Logarithmic scale, -Grid or graticule, -Scale title, -Graph title, -Font.