1. [1.1] (2 points each) Classify the solution sets (inconsistent; consistent independent, or consistent dependent) for the systems that are modeled by the following matrices
-8 12
[0 ? 3
2. [1.2] (3 points) Which of the matrices in #l are in RREF (reduced row echelon form)?
3 . [1.2] (6 points each) For each system of equations write the augmented matrix for the following system. Find the solution(s), if any, of the system by performing row operations on the augmented matrix . Show all work.
[3x, +2x, =-7 (2x; Xz
J x-2x; 4=3 Bx, 6x, 2x; = 2