Chapter 6, Section 5 Quadratic Formula.

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Presentation transcript:

Chapter 6, Section 5 Quadratic Formula

Discriminant The discriminant is used to tell what kind of solutions a quadratic function has. Properties If the discriminant is >0 & is a perfect square , there are 2 real rational solutions If the discriminant is >0 & is not a perfect square, there are 2 real irrational solutions If the discriminant =0, there is 1 real rational solution If the discriminant <0, there are2 complex solutions (conjugates)

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Homework 6-5 in practice workbook Exit Slip: Problems 1-15 odd, 18, 27, 28 Exit Slip: What advantage does using the quadratic formula have over finding a solution by graphing?