MGT 263 Harvard University Algebra Questions

1. Find the associated augmented matrix for the following linear system* + 32 + 3.63 = 3
3.0 +2.2 – 23 + 3×4 = 7
2 + 3.1, +213 + 14 = 7
no
2. Determine if the matrix is in RREF. State which criterion it violates if your answer is
10 0 4
A = 0 1 -1 3
0 0 1 0
3. Solve the linear system in variables x,y,z, w whose augmented matrix is already in
RREF as below
100 -22
010-31
0 01 02
4. Solve the linear system in variables r,y,z, w whose augmented matrix is already in
RREF as below
1-10
1-3 1
0 0 0
0
3
0
0
0
0