TI-89 Graphing Calculator For Dummies
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Your TI-89 graphing calculator can help you solve equations and systems of equations. All you have to do is put them in the proper format. Fortunately, the following list shows how to format equations so that the TI-89 graphing calculator can help solve them.

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C.C. Edwards is an instructor at Coastal Carolina University and a former editor of Texas Instruments' Eightysomething, a newsletter for parents and educators.

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