[10 points] Forward elimination changes Ax = b to the system Rx = d. If the process of elim- ination subtracted 2 times row 1 from row 2 and then 4 times row 1 from row 3, what matrix connects R and d to the original A and b? (That is, find E such that R = EA and Eb = d).

b. y = 4x - 2

step-by-step explanation:

to find a parallel equation to an equation, make sure both equations have the same slope but different y-intercepts.

y = 4x + 1

4 = slope

1 = y-intercept

y = 4x - 2

4 = slope

-2 = y-intercept

they both have the same slope but different y-intercepts, so, b. is the correct answer.

and to check your work, you can graph both equations. : )

maya’s expression will generate the wrong sum because she violated the commutative property.

step-by-step explanation: