This lesson has the students graph functions using Excel. Excel makes it easy for them to change the numbers in the formulas (example: changing the m in y=mx+b) and see how that effects the graph. Being able to manipulate the formulas so easily will help the students see the connections between the formulas and their graphs. I also think this is a great idea because most schools have Excel, there is no need for the students to have graphing calculators.
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