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INSTRUCTORS Carleen Eaton Grant Fraser

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For more information, please see full course syllabus of Algebra 2
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Solving Systems of Equations with Matrices

  • We can write a system of equations in matrix form. The result is a matrix equation.

  • A system of equations can be solved using matrices. The solution is the product of the inverse of the matrix of coefficients and the matrix of constants.

  • The system has a unique solution if and only if the matrix of coefficients has an inverse.

  • If the matrix of coefficients does not have an inverse, then either there is no solution or there are an infinite number of solutions.

Solving Systems of Equations with Matrices

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

  • Intro 0:00
  • Matrix Equations 0:22
    • Example
  • Solving Systems of Equations 4:20
    • Example
  • Lecture Example 1 9:11
  • Lecture Example 2 15:09
  • Additional Example 3
  • Additional Example 4