Question

Here is the next question:
Describe in your own words the meaning with respect to a matrix of the notation shown below.
R4 + (-4)R1
a. replace row 4 with -4 times row 1
b. swap row 4 with -4 times row 1
c.multiply row 1 by -4 and add the result to row 4. Replace row 1 with the sum.
d. Multiply row 1 by -4 and add the result to row 4. Replace row 4 with the sum.
e. add -4 to row 4 and replace row 1 with the sum.

Answer 1

@jim_thompson5910

Answer 2

@jim_thompson5910

Answer 3

(-4)R1 means Multiply row 1 by -4

R4 + (-4)R1 means "Multiply row 1 by -4 and add the result to row 4"

then you would replace row 4 with the previous result

Answer 4

so the answer would be D.

Answer 5

yes