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Discussion question on Quadratic Regression
View a video on how to do a quadratic regression on your calculator. These videos can be found by doing a web search or a youtube search for quadratic regression. One web site that has TI graphing calculator videos is mathispower4u.wordpress.com. Another web site is khanacademy.org.
Look through newspapers, magazines or on the internet for data that initially increases and then decreases, or vice versa. You are looking for data that can be represented as a parabola. Use the quadratic regression feature of your calculator to find the quadratic function that best fits the data. Interpret what the graph represents and if you think the function is a good model. Cite the source of your data.