## Quadratic Function, Equation, Formula

Quadratic function is the simplest polynomial function that is non-linear. In this tutorial, you will first learn to distinguish
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quadratic function
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from
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quadratic equation
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and
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quadratic formula
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. Then you will explore the characteristics of quadratic function and parabola curve. After that, we discuss about discriminant and robust way to find the roots of quadratic equation. You can play around with example of quadratic function through
Microsoft Excel file companion
of this tutorial to get the parameters of quadratic function by specifying three points. At the end, you will learn simple application of quadratic function to do optimization without calculus.

Topics of this tutorial

Quadratic Function

Quadratic Equation

Discriminant

Quadratic Equation through 3 points

Applications: Optimization without Calculus

Resources on Quadratic Equation

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These tutorial is copyrighted .

**
Preferable reference for this tutorial is
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Teknomo, Kardi. (2008) Quadratic Function Tutorial .

http://people.revoledu.com/kardi/tutorial/quadratic/