Tips for Beginners for the TI 89 Calculator

If you want the inverse function and the inverse relationship is not already a function, it does not work. To obtain the graph of the inverse function use Method 1. If the function did not have an inverse function because it contained a y² term (e.g. y = x² or x² + y² = 1), proceed as in 1 above, but remove the {1, -1}. ................
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