1 / 10

Warm Up

Warm Up. Factor the following quadratic expressions . 4x 2 + 32x x 2 + 12x + 20 x 2 – 16 2x 2 + 5x – 3. HW Check. 9. Line of symmetry: x = 3.5; vertex (3.5, -0.25) v = 3, 4 10. Line of symmetry: x = -3 vertex (-3, -25) n = 2, -8 11. Line of symmetry: x = -1.5

fritz-hester
Télécharger la présentation

Warm Up

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Warm Up Factor the following quadratic expressions. • 4x2 + 32x • x2 + 12x + 20 • x2 – 16 • 2x2 + 5x – 3

  2. HW Check 9. Line of symmetry: x = 3.5; vertex (3.5, -0.25) v = 3, 4 10. Line of symmetry: x = -3 vertex (-3, -25) n = 2, -8 11. Line of symmetry: x = -1.5 vertex: (-1.5, -0.25) r = -1, -2 12. Line of symmetry: x = -0.5 vertex: (-0.5, -2.25) b = -2, 1 5. Line of symmetry: k = 5.5; vertex (5.5, -18.75) k = 3, 8 6. Line of symmetry: x = -4.5; vertex (-4.5, -2.25) n = -3, -6 7. Line of symmetry: x = -2.5; vertex (-2.5, -85.75) v = 1, -6 8. Line of symmetry: x = -2; vertex (-2, 0) k = -2

  3. HW Check 17. Line of symmetry: x = -2.86 vertex (-2.86, -32.14) a = -0.714, -5 18. Line of symmetry: x = 0.986 vertex (0.986, -6.01) x = 0.571, 1.4 13. Line of symmetry: x = 3.25 vertex (3.25, -140.625) n = -0.5, 7 14. Line of symmetry: x = 1.33 vertex (1.33, -21.33) x = -1.33, 4 15. Line of symmetry: x = 3.5625 vertex (3.5625, -189.06) n = 0.125, 7 16. Line of symmetry: x = -3.28 vertex (-3.28, -206.29) n = -0.57, -6

  4. Unit 7 Day 2 Solving Quadratic Equations by Factoring

  5. Teach me how to Factor… • GCF (Greatest Common Factor) • Ex: 3x2 - 18x • Difference of Squares • Ex: x2 - 81 • Trinomals where a = 1 • Ex: x2 + 4x - 12 • Trinomials where a does not equal 1 • Ex: 3x2 + 14x - 5

  6. Steps to Solve by Factoring: Step 1: Set the equation equal to zero (arrange in standard form) Step 2: Factor Completely! Step 3: ZPP! Step 4: Solve each equation.

  7. Example 1: Solving by Factoring Step 1) Write in standard form. Step 2) Factor. Step 3) Use the Zero-Product Property. Step 4) Solve for x.

  8. Example 2: Solving by Factoring Step 1) Write in standard form. Step 2) Factor. Step 3) Use the Zero-Product Property. Step 4) Solve for x.

  9. Example 3: Solving by Factoring Example 4: Solving by Factoring

  10. Example 5: Solve by Factoring x2 = 49

More Related