Tips for Beginners for the TI 89 Calculator

Note that you must explicitly type b*x, not bx, otherwise bx will be interpreted as a variable name, not b times x. Then for each conic just key in the values of A, B, C, etc. For the above example, key 1 A, -4 B, 4 C, 10 D, 0 E and -30 F. Now set y1(x) = conic(x), and graph it. How to Simplify Rational Functions ................
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