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Lecture 1.7b bt
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Lecture 1.7b bt

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Transcript

  • 1. Today’s Agenda • Attendance / Announcements – Exam 1 – Tuesday 9/24 • Covers Chapters 1.1 to 2.4 (skip 2.5) • BlackBoard Resources • Questions from HW? • Finish Section 1.7 • Classwork / Questions
  • 2. 1.7b Quadratic Equations Last class, we learned how to solve quadratics using factoring , the zero product property, and the square root property.
  • 3. 1.7b Quadratic Equations Solve…. 043 2 xx So, we’ll need another tool to help us solve quadratics…
  • 4. The Quadratic Formula a acbb x 2 4 2
  • 5. We have to be able to identify a, b, c ! 032 2 xx 0184 2 x xx 41 2 61 2 3 2 xx 94x
  • 6. The Quadratic Formula 152 2 xx Number and type of solutions?
  • 7. The Quadratic Formula 12123 2 xx Number and type of solutions?
  • 8. The Quadratic Formula 068 2 xx Number and type of solutions?
  • 9. The Quadratic Formula 043 2 xx Number and type of solutions?
  • 10. The Discriminant (p. 64) This is a shortcut to determine what types of solutions the quadratic has.
  • 11. The Discriminant a acbb x 2 4 2
  • 12. Determine the types of solutions 1129 2 mm
  • 13. Classwork / Homework* Page 67 1 – 51 odd (skip 37) Page 71 (Chapter 1 Review) All that you can handle!