Answer
The benefits of using a graph are;
• Visually see the effect of one variable on another
• Communicates the results
• Easily see outliers in data.
Step-by-step explanation
When a graph is used in a experiment, it gives the researcher a visual picture of the results. A graph can convey a lot of details that could have taken time to describe simply by compacting the information with a visual presentation. On a graph, it is possible to see how the variables relate when a plot of values is drawn. A graph is a way to communicate results. Outlier in a set of values can be spotted if plotted on the graph because they will not correspond with the relationship/equation of the graph.