The correct answer to this open question is the following.
Graphs can be used to describe, predict, compare or infer information in the following. When you use a graph, you have a graphic description of information that uses numbers, percentages, and concepts that indicate a tendency of what has happened in the past. This way, analyzing what has happened, you can make projections regarding that tendency. This way you could anticipate some scenarios and this will be helpful to make better decisions in the now moment.