Study Guide 1. At Metropolis Middle School, the student government earns money by recycling cans and bottles after school events. The graph shows some sample (attendance, containers) data, along with a line modeling the pattern in the data. 1300 Containers Recycled Thinking With Mathematical Models 200 100- Events Attendance 200 300 a. Use the linear model to estimate answers for the questions below. Explain how each estimate can be found from the graph.