Chapter 9‎ > ‎

9.4 Solving Quadratic Equations by Completing the Square

Standard(s):

  • A.REI.4a: Use a method of completing the square to transform any quadratic equation in x into an equation of the form (x-p)^2 = q that has the same solutions. Derive the quadratic formula from this form.
  • A.REI.4b.: Solve quadratic equations in one variable. Solve quadratic equations by inspection taking square roots, completing the square, the quadratic formula, and factoring as appropriate to the initial form of the equation.
Essential Question:
  • How are quadratic functions used to model, analyze, and interpret mathematical relationships?
  • What are the different ways to solve a quadratic equation, and when is each appropriate?
  • How can analytic and graphical methods be used to support each other in the solution of a problem?
Learning Target:
  • I can solve a quadratic equation by taking square roots.
  • I can solve a quadratic equation by completing the square.

Warm-Up:
     
  • https://docs.google.com/document/d/1htr4ExzsaObRNid40QhWEPxOMqRYM9-p8EK_kmVUKjA/edit?usp=sharing

Notes: 

Click on the image below for the PDF of the notes 9.4 Solving Quadratic Equations by Completing the Square
  • https://drive.google.com/file/d/0B7PRmllaLVfFR09IT3dYUjBxems/view?usp=sharing

Video:

Click below for the Classroom Lesson -  9.4 Solving Quadratic Equations by Completing the Square
  • https://drive.google.com/file/d/0B7PRmllaLVfFZzdnTjFadzg3TWc/view?usp=sharing

Watch this video on Solving Quadratic Equations by Completing the Square
  • Embed gadget




Watch this video on Solving Quadratic Equations by Completing the Square
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Activities:

Click on the image below for an activity -  Solving Quadratic Equations by Completing the Square
  • https://www.ixl.com/math/algebra-1/solve-a-quadratic-equation-by-completing-the-square

Click on the image below for a review -  Solving Quadratic Equations by Completing the Square
  • https://campus.mangahigh.com/en-us/px/205/0/0


Extra Help:
Click on the image below for help 
http://www.wolframalpha.com/


Assessment/Homework:
Day 1:  pg. 555 11-31 odd

Day 2: Worksheet 9.4 A evens & Worksheet 9.4 B evens
https://drive.google.com/file/d/0B7PRmllaLVfFSTNUSGliZXI2NW8/view?usp=sharing https://drive.google.com/file/d/0B7PRmllaLVfFWUtYdkI1VDluVDA/view?usp=sharing

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