Getting to know your TI-83

When performing addition, subtraction multiplication, and division, the TI-83 uses the standard order to operations. The use of parentheses may be required for some expressions.

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Quadratic Functions

If a > 0, then the function has a minimum at the x coordinate of the vertex
If a < 0, then the function has a maximum at the x coordinate of the vertex

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Steps to finding the roots of a polynomial equation

Determine the maximum number of roots possible (the highest exponent).

The example below has at most 4 zeros.

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