Question

The augmented matrix of
12 3 1 2 3 31 4
4 -4 -1 4 11 4
2 -5 -2 2 -1 9
0 2 1 0 4-3​

Answer 1

Answer:A matrix can serve as a device for representing and solving a system of equations. To express a system in matrix form, we extract the coefficients of the variables and the constants, and these become the entries of the matrix. We use a vertical line to separate the coefficient entries from the constants, essentially replacing the equal signs. When a system is written in this form, we call it an augmented matrix.

Explanation:

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