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Solving Systems of Equations Using Matrices

Solving Systems of Equations Using Matrices. Finally!!!. Ex 1: How can we set up a system of equations as a matrix?. Plug this into your calculator: MATRIX EDIT [A]. What are the dimensions of A?. Simply hit rref [A]: MATRIX MATH B: rref MATRIX 1: [A].

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Solving Systems of Equations Using Matrices

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  1. Solving Systems of Equations Using Matrices Finally!!!

  2. Ex 1: How can we set up a system of equations as a matrix? • Plug this into your calculator: • MATRIX • EDIT • [A] What are the dimensions of A? • Simply hit rref [A]: • MATRIX • MATH • B: rref • MATRIX • 1: [A] FYI: rref stands for Reduced Row Echelon Format Answer: (-7,2)  x=-7, y=2

  3. EX 2: Solve the system of equations

  4. Ex 3: Solve the system of equations Answer (-7, -9, 1)  x=-7, y=-9, z=1

  5. Ex 4: Solve the System of Equations Answer (-2, -1, 3)  x=-2, y=-1, z=3

  6. Ex 5: Solve the system of equations 0y=1???? No solution!!! Parallel lines

  7. Practice  Pg 744 # 7,9, 51-61 odd.

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