Final answer:
To display the relationship between two numeric variables, a scatter chart should be used as it effectively demonstrates how one variable is affected by another.
Step-by-step explanation:
To show the relationship between two numeric variables, you would use a scatter chart. While line graphs do show a relationship between two variables with one measured on the horizontal axis and the other on the vertical axis, they are typically used to represent data points connected by straight line segments, showing trends over time.
In contrast, a scatter plot, or scatter chart, is a type of graph that is used to display and compare two different variables to show how much one variable is affected by another, illustrating the correlation between them.