Suppose That You Are Solving a System of 4 Linear $2 R _ { 1 } + R _ { 2 }$

question 23

Multiple Choice

Suppose that you are solving a system of 4 linear equations in 4 variables by the row echelon method. If you use the transformation $2 R _ { 1 } + R _ { 2 }$ , which row or rows of the augmented matrix, if any, will change?

• A) Rows 1 and 2
• B) Row 1
• C) Row 2
• D) None

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