Final answer:
The type of graph you would select to illustrate the relationship of two variables is a line graph.
Step-by-step explanation:
If you wanted to graphically illustrate the relationship of two variables, the type of graph you would select is the line graph.
A line graph shows the relationship between two variables, with one variable represented on the horizontal axis and the other variable represented on the vertical axis. This type of graph is useful for showing trends and patterns over time or any continuous data relationship.
For example, a line graph can be used to show the relationship between time and temperature, with time represented on the horizontal axis and temperature represented on the vertical axis. The line on the graph will connect the data points, showing how the temperature changes over time.