Chapter 1: Systems of Linear Equations and Matrices 1.2.1 Gaussian Elimination SWBAT: define and use Row-Echelon and Reduced Row-Echelon Form

Echelon Form In the previous set of notes you solved a system of equations and you answer looked like this: This is an example of a matrix in Reduced Row-Echelon form

Which matrices are in Reduced Row-echelon Form?

What is another name we could use? For the Matrices that are not in Reduced row- echelon form, they still look very different than this matrix: I did this for a reason! What are the common attributes? How are they different? Is there such a thing as column echelon from? What would it look like?

Write the criteria for Reduced row-echelon form:

Problems for mastery pg. 19 and 20 1, 2, 3, and write the following as a matrix and write in echelon and reduce echelon form: 6, 8