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This activity presents a real-world problem that gives learners practice in analyzing data, plotting the data on a graph, and using the graph to draw conclusions. The basic task is to determine how long it will take varying numbers of people to complete a leaf-raking job, given the time it takes one person to do the job. The task is extended to include questions that require interpreting the graph within the context of the problem. Plotting the data generates the graph of a hyperbola and introduces a discussion about inverse relationships. A second part of the activity asks learners to apply the same techniques used in the leaf-raking activity to a similar one about shoveling snow.

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