Pc 7.2 notes
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Pc 7.2 notes Pc 7.2 notes Presentation Transcript

  • February 29, 20127.2 Systems ofEquationsEssential Question:What are the methods for solving a system of equationsand their types of solutions?Standard: Linear Algebra 1.0 1
  • February 29, 2012Methods for Solving Systems ofLinear Equations- 1. 2. 3. 2
  • February 29, 2012Elimination Method:1. Get coefficients for one variable that differ onlyin sign by multiplying all terms in one or bothequations.2. Add equations to eliminate one variable and solve.3. Back-substitute the value and solve for remainingvariables.4. Check solution in all original equations. 3
  • February 29, 2012Ex. 1) Solve this system. 4
  • February 29, 2012Types of Solutions: 5
  • February 29, 2012Ex. 2) Solve the system. 6
  • February 29, 2012Ex. 3) Solve the system. 7
  • February 29, 2012Assignment:7.2 p. 515 #11, 15,19, 21, 25, 32, 39 8