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In this article, the author shares models that were created for class projects in a section of College Algebra taught as part of a first-year cohort program in which the participating students complete eight introductory college courses as a learning community. Using real-world data and GeoGebra function fitting commands, the author has developed models related to a community engagement project theme of drug and alcohol awareness. Quadratic, rational, exponential, and logistic models are presented along with data and a discussion of how GeoGebra was used to create the models.Â
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