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9-5 Quadratic Formula

9-5 Quadratic Formula . Objectives: Solve quadratic equations using the quadratic formula. Determine the number of solutions of a quadratic equation using the discriminant. Quadratic Formula . Example 1: Solve for x using the quadratic formula. a. b. . Discriminant .

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9-5 Quadratic Formula

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  1. 9-5 Quadratic Formula Objectives: Solve quadratic equations using the quadratic formula. Determine the number of solutions of a quadratic equation using the discriminant.

  2. Quadratic Formula

  3. Example 1: Solve for x using the quadratic formula a. b.

  4. Discriminant • The stuff under the square root –

  5. Example 2: Find the discriminant then solve using the quadratic formula. a. b.

  6. Example 2: Solve using the quadratic formula. c. d.

  7. You try... e. f. g. h.

  8. Let’s look back at the Discriminant • The stuff under the square root – • Look back at our examples and the discriminant of each… • What does this tell us?

  9. 1. Who is this actor? Trivia… Johnny Depp 2. Who is this actress? Julia Roberts 3. What movie is this scene from? Hook

  10. Example: How many solutions does the quadratic function have? Then state what the solutions are. a. b.

  11. Example: How many solutions does the quadratic function have? Then state what the solutions are. c.

  12. HW • WS

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