This eighth-grade math worksheet provides practice for graphing proportional relationships and finding the constant of proportionality. The two-page worksheet includes several word problems, each with a ratio that defines a proportional relationship between two quantities. Students are required to use the given ratios to determine the constant of proportionality and create a graph to represent each proportional relationship. This exercise is an excellent way to help students identify and graph proportional relationships, as well as see how these concepts apply to real-world situations. For more focused practice, students can also try "Graph Proportional Relationships #1" and "Graph Proportional Relationships #2."