This is a "real world" modeling problem. Students must choose the appropriate data from the sustainability data set and then use Graph to model the data. They are not explicitly told this in the task as we are encouraging them to consider the tools at their disposal and use the appropriate one. Graph will create an exponential model for the data and then they can use this model to address the question asked. This is a good problem solving task and allows the students to see another motivation for exponential functions before we get into the nitty gritty in the next activity. This activity is followed up on in the next activity. |

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