Solving%20Linear%20Systems - PowerPoint PPT Presentation

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Solving%20Linear%20Systems

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Solving Linear Systems Choosing a Method For each of the following Determine which method Graphing Substitution Elimination is the best and state a reason. – PowerPoint PPT presentation

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Title: Solving%20Linear%20Systems


1
Solving Linear Systems
  • Choosing a Method

2
  • For each of the following
  • Determine which method
  • Graphing
  • Substitution
  • Elimination
  • is the best and state a reason.

3
Linear System 1
  • C 30n
  • C 5n 60
  • Answer Substitution
  • Reason It is set up with one variable already
    isolated!!

4
Linear System 2
  • y 3x 15
  • y x 10
  • Answer Substitution
  • Reason - It is set up with one variable already
    isolated!!

5
Linear System 3
  • x y 5
  • x y 6
  • Answer Elimination
  • Reason The equations are already set up for
    adding or subtracting them!!

6
Linear System 4
  • Answer Graphing
  • Reason We cannot solve algebraically with an x2
    in an equation!!

7
Linear System 5
  • Answer Substitution
  • Reason - It is set up with one variable already
    isolated!!

8
Linear System 6
  • 5x 3y -5
  • 3x 6y 4
  • Answer - Elimination
  • Reason No variables are alone on one side of
    the equal sign!

9
Linear System 7
  • Answer Elimination
  • Reason No variables are alone on one side of
    the equal sign!!

10
Linear System 8
  • Answer - Graphing
  • Reason the 4/x is the same as x-1 which
    again, we cant solve algebraically!!
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