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Discriminant Notes - Chp.5. March12,2013 Date...

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Chp. 5.6 ­ Quadratic Formula and Discriminant Algebra II 1 March 12, 2013 Date: Chapter: Chapter 5:6 ­­> The Quadratic Formula and Discriminant Objectives: Solve quadratic equations by using the Quadratic Formula. Use the discriminant to determine the number and types of roots.
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Chp. 5.6 ­ Quadratic Formula and Discriminant Algebra II 2 March 12, 2013 Notes: Pumpkin catapult is an event in which a contestant builds a catapult and launches a pumpkin at a target. The path of the pumpkin can be modeled by the quadratic function h = ­4.9t 2 + 117t + 42 where h is the height of the pumpkin and t is the number of seconds. To predict when the pumpkin will hit the target, you can solve the equation by putting in 0 for h. * Quadratic Formula = Method used to solve any quadratic equation. How to derive the Quadratic Formula ..... ax 2 + bx + c = 0 * Discriminant = The number under the radical in the
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