Home‎ > ‎Algebra 1‎ > ‎Chapter 6‎ > ‎

6.3 Solving System of Equations by Elimination

Standard(s):

  • A.REI.C.6: Solve systems of linear equations exactly and approximately (e.g., with graph), focusing on pairs of linear equations in two variables.I can use function notation to show that when f(x)=y and g(x)=y that f(x)=g(x).


Essential Question:

  • In what ways can the problem be solved, and why should one method be chosen over another?


Learning Target:

  • I can define systems of linear equations.(Knowledge)

  • I can define solutions of systems of equations.(Knowledge)

  • I can explain why some linear systems have no solutions.(Comprehension)

  • I can identify linear systems with no solutions.(Comprehension)

  • I can explain why some linear systems have infinite solutions.(Comprehension)

  • I can identify linear systems with infinite solutions.(Comprehension)

  • I can solve a system of linear equations algebraically to find an exact solution.(Application)

  • I can find an exact solution to a system of linear equation by graphing.(Knowledge)

  • I can explain that a point of intersection on the graph of a system of equations is the solution to both equations. (Comprehension)

  • I can use function notation to show that when f(x)=y and g(x)=y that f(x)=g(x).(Application)

  • I can explain that the value making f(x)=g(x) true is the x coordinate of the intersection point.(Comprehension)


Warm-Up:
     
  • https://docs.google.com/document/d/1zFXo56dDFilTilHKvESuggCRwSwqSIecwprrdO9SJ34/edit?usp=sharing


Notes: 

Click on the image below for the PDF of the notes 6.3 Solving System of Equations by Elimination
  • https://drive.google.com/file/d/0B7PRmllaLVfFd3NXbXlwb1oybDg/view?usp=sharing



Video:

Click below for the Classroom Lesson -  6.3 Solving System of Equations by Elimination
  • https://drive.google.com/file/d/0B7PRmllaLVfFektNM0o5S3pZT00/view?usp=sharing


Watch this video on Solving System of Equations by Elimination
  • Embed gadget


Watch this video on Solving System of Equations by Elimination
  • Embed gadget




Activities:

Click on the image below for an activity -  Solving System of Equations by Elimination
  • https://www.ixl.com/math/algebra-1/solve-a-system-of-equations-using-elimination

Click on the image below for a Game - Solving System of Equations by Elimination
  • http://www.mathgames.com/skill/8.54-solve-a-system-of-equations-using-elimination
Extra Help:
Click on the image below for help 
http://www.wolframalpha.com/

Assessment/Homework:
Day 1: pg. 352 7-23 odd

Day 2: Worksheet 6.2 & 6.3 odds
https://drive.google.com/file/d/0B7PRmllaLVfFZHdROHNLVm5YZ3c/view?usp=sharing

Comments