Provide an appropriate response.
-Suppose that you are solving a system of 4 linear equations in 4 variables by the Gauss-Jordan method. If you use the transformation $- 2 R _ { 1 } + R _ { 4 }$, which row or rows of the augmented matrix, if any, will change?
A) Row 1
B) Rows 1 and 4
C) Row 4
D) None

Question

Quizplus · Accepted Answer

The transformation $- 2 R _ { 1 } + R _ { 4 }$ specifically targets Row 4 by subtracting twice Row 1 from it, thus only Row 4 will change.

Provide an Appropriate Response −2R1+R4- 2 R _ { 1 } + R _ { 4 }−2R1​+R4​

Provide an Appropriate Response $- 2 R _ { 1 } + R _ { 4 }$