The correct answer is True.
Color and shape are used to add dimensions to graph data. This is because they can be used to represent different categories or values. For example, you could use color to represent different types of data, such as sales data or customer data. You could also use shape to represent different values, such as the size of a company or the number of employees.
Adding dimensions to graph data can make it easier to understand and interpret. This is because it allows you to see more information at a glance. For example, if you are looking at a graph of sales data, you can see how sales have changed over time by looking at the line on the graph. However, if you also add color to the graph, you can see how sales have changed for different products or regions. This can give you a more complete picture of your sales data.
There are a few things to keep in mind when using color and shape to add dimensions to graph data. First, you need to make sure that the colors and shapes you choose are easy to distinguish from each other. Second, you need to make sure that the colors and shapes you choose are relevant to the data you are representing. Finally, you need to make sure that the colors and shapes you choose do not obscure the data.
Overall, color and shape can be used to add dimensions to graph data and make it easier to understand and interpret. However, it is important to use them carefully to avoid obscuring the data.