Asked by Liz
write and row reduce the augmented matrix to find the general solution:
x - 2y + 13 = 0
y - 4x = 17
x - 2y + 13 = 0
y - 4x = 17
Answers
Answered by
Steve
(1 -2 -13)
(-4 1 17)
(4 -8 -52)
(-4 1 17)
add to get
(4 -8 52)
(0 -7 -35)
divide to get 1's on the diagonal
(1 -2 -13)
(0 1 5)
add twice row 2 to row 1 to get
(1 0 -3)
(0 1 5)
(-4 1 17)
(4 -8 -52)
(-4 1 17)
add to get
(4 -8 52)
(0 -7 -35)
divide to get 1's on the diagonal
(1 -2 -13)
(0 1 5)
add twice row 2 to row 1 to get
(1 0 -3)
(0 1 5)
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