Tips for Beginners for the TI 89 Calculator

To find analytically the inverse of f(x), written f-1(x), key solve(y = f(x), x). Then exchange x and y by hand. Solve( is F2 Algebra 1: solve(. For example solve(y = 2x + 1, x) gives x = (y-1)/2. So f -1(x) = (x-1)/2. Solve(y = ln(x), x) gives x = ey. So f -1(x) = ex. There are several ways to graph the inverse. 1) You can first find f-1(x ... ................
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