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Mathematics LibreTexts

Key Terms Chapter 09: Quadratic Equations and Functions

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discriminant | In the Quadratic Formula, x=b±b24ac2a, the quantity b24ac is called the discriminant.

quadratic function | A quadratic function, where a, b, and c are real numbers and a0, is a function of the form f(x)=ax2+bx+c.

quadratic inequality | A quadratic inequality is an inequality that contains a quadratic expression.

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