Quadratic Equations – The Sequel 33 22 11 Quadratic Formula Discriminants Using the Quadratic Formula.

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Presentation transcript:

Quadratic Equations – The Sequel Quadratic Formula Discriminants Using the Quadratic Formula

Quadratic Formula  Steps  Get the equation in the quadratic form ax 2 +bx+c=0  Write the quadratic formula  Substitute for a, b, and c  Solve 2

The Song 3

Discriminants of a Quadratic Equation  The number found via b 2 -4ac under the radical sign is called the discriminant 4

Using the Quadratic Formula  Solve 9x 2 – 30x + 25 = 0 5

Using the Quadratic Equation…Again SSolve 2x(3 – x) = 3 BBeware! Do NOT try to solve this using the zero factor rule!!! 6

Using the Quadratic Formula on Word Problems 7

Using the Quadratic Formula on Word Problems (Cont.) 8