What type of graph is used to visualize the relationship of two or more variables?

A scatter graph or line graph is specifically designed to illustrate the relationship between two or more variables. This type of graph allows for the plotting of individual data points based on their values across two axes, which represent the different variables. In the case of a scatter graph, each point represents a unique combination of variable values, making it easy to observe patterns, trends, or correlations. If a line graph is employed, it connects the dots to show the progression or trend of the data over time, further enhancing the interpretation of the relationship between the variables.

Both scatter and line graphs are powerful tools for data analysis, as they provide a clear visual representation that can reveal how one variable may change in relation to another, thereby assisting in drawing conclusions from the data set.