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Advanced Algebra & Trigonometry: Ms. Levine Lesson 1: Something to talk about– Review

Advanced Algebra & Trigonometry: Ms. Levine Lesson 1: Something to talk about– Review. 09/12/2013 Aim: Students will develop representations of quadratic functions Do Now: Check out a laptop and navigate to our website Malcmath.weebly.com Advanced Algebra & Trigonometry

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Advanced Algebra & Trigonometry: Ms. Levine Lesson 1: Something to talk about– Review

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  1. Advanced Algebra & Trigonometry:Ms. LevineLesson 1: Something to talk about– Review 09/12/2013 Aim: Students will develop representations of quadratic functions Do Now: Check out a laptop and navigate to our website Malcmath.weebly.com Advanced Algebra & Trigonometry Find Today’s date by scrolling down

  2. Something to Talk About - Review • First 15 minutes: complete recommended exercises • *If you have not signed up for Khan Academy, do so* • Sign up • On home page, click “Coaches” on bottom left • Add class code: AZBMY6

  3. Something to talk about - Review • Explicit vs. Recursive • What’s the difference? • Explicit: names the first term IN the equation • Recursive: Names the term when x = 1 • Uses the PREVIOUS term to name the new term

  4. Something to talk about - review • An EXPLICIT equation has ONE PART • n-1 • First term • common ratio • A RECURSIVE equation has TWO PARTS and a BRACKET

  5. Something to talk about - Review • Explicit and Recursive Formulas: So how do we write them? • Explicit • Start with the first term • What is the change? • If it’s a COMMON DIFFERENCE (adding by the same number) your equation will include addition – it’s LINEAR • Example: RSG 1.1 – 8c

  6. Something to talk about - Review • Explicit and Recursive Formulas: So how do we write them? • Explicit • If it’s a COMMON RATIO (multiplying by the same number), your equation will include MULTIPLICATION AND AN EXPONENT – it’s EXPONENTIAL • Example: RSG 1.1 – 8a

  7. Something to talk about: Review • Recursive: • Find the function when x = 1 • Find the change RELATIVE TO f(x) or y • If it’s a common difference (adding by a constant rate), your second equation will look like: • TERM YOU WANT = PREVIOUS TERM + COMMON DIFFERENCE • Example: RSG 1.1 – 8c

  8. Something to talk about: Review • Recursive: • Find the function when x = 1 • Find the change RELATIVE TO f(x) or y • If it’s a common ratio (multiplying by a constant rate), your second equation will look like: • TERM YOU WANT = PREVIOUS TERM * COMMON RATIO • Example: RSG 1.1 – 8a

  9. Closure: • Submit the closure form on the website by answering the question provided there • TONIGHT’S HW: • Finish any recommended exercises on khan academy you did not finish in class

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