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Steve Arnold, 2018, Created with GeoGebra

This problem may also be modelled using CabriJr on the TI-83/84 series calculator. Click on the graphic below to download the file and try it yourself!

Try having students work in pairs: one generating data points using the CabriJr model and the partner entering these into lists to plot and then to help build their algebraic model!

Just wait until you try this with TI-nspire CAS!

And you really should have a look at GXWeb and Geometry Expressions.

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This dynamic figure was created using the latest version of the free GXWeb from Saltire Software, as shown below.

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Solve this problem using GXWeb.

See a complete solution to this problem.

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