Alg bc unit 4 Day 6 – Augmented Matrices and Row Operations



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Alg BC Unit 4 Day 6 – Augmented Matrices and Row Operations


Augmented Matrix – A coefficient matrix with an extra ______________(which contains the ____________.)

We can use augmented matrices as another way to solve __________________!! (That makes 6 ways!)



Example: Augmented Matrix:

ROW OPERATIONS: (Three things we are allowed to do with an augmented matrix):


1.

2.

3.


Using the Augmented Matrix to solve the system: (HINT: Get a “1” in the upper left first; then fill column with “0”’s.)

Try solving this system using an augmented matrix and row operations:



And now, enter the calculator …

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