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Warm-Up: Factoring!

Warm-Up: Factoring!. Factor each of the following equations:. Unit 3 Graphing Parabolas from Factored Form. LG: I can use the factored form of a quadratic equation to sketch a parabola. Factored Form of Quadratic Equations. Recall : What info does factored form tell us?

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Warm-Up: Factoring!

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  1. Warm-Up: Factoring! Factor each of the following equations:

  2. Unit 3Graphing Parabolas from Factored Form LG: I can use the factored form of a quadratic equation to sketch a parabola

  3. Factored Form of Quadratic Equations • Recall: What info does factored form tell us? • General Form: , where s and t are the zeros of the parabola • Note: Zeros are also called “roots”, “solutions”, or the“x-intercepts” of a quadratic equation • Examples: What are the zeros in the following equations? a) b) Remember: at the x-intercepts, y =0

  4. What can we do with Zeros? • Back to example a: • What are the zeros? b) Where is the axis of symmetry? c) Where is the vertex?

  5. Practice: • Factor the equation • Find the zeros • Find the axis of symmetry • Find the vertex • Graph it!

  6. Practice • Pg. 281 # 5ace, 7ace • Pg. 376 # 4a,f (i, ii, iv) • (plus any factoring questions not completed last night) What’s to come: • Tomorrow: Complex Trinomial Factoring and Difference of Squares Factoring • Factoring Test: Monday October 28th

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