Ines created a coefficient matrix to represent the system of linear equations. 3 x is equal to 3 4 y is equal to 8 negative 9 z is equal to negative 27 Which type of matrix did Ines create?

The coefficient matrix uses only the coefficients of x, y, and z, not the numbers on the right sides of the equations. The equations give rows (3, 0, 0), (0, 4, 0), and (0, 0, −9). Since every entry outside the main diagonal is 0, Ines created a diagonal matrix.

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