The Matrix Associated with the Solution to a System of Linear

question 184

Multiple Choice

The matrix associated with the solution to a system of linear equations in x, y, and z is given. Write the solution to the
system, if it exists.
- $$\left[ \begin{array} { r r r | r } 1 & - 1 & 1 & - 3 \\1 & 1 & 1 & 3 \\1 & 1 & - 1 & 1\end{array} \right]$$

• A) \(x = 1 , y = - 1 , z = 3\)
• B) \(x = - 1 , y = 3 , z = 1\)
• C) \(x = - 3 , y = 3 , z = 1\)
• D) \(x = - 1 , y = 1 , z = 3\)

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Definitions:

Direct Materials

Raw materials that are used directly in the manufacturing of a product and can be directly attributed to the product.

Borrowing

The act of receiving something with the intention to return it, often referring to money from a lender under agreed terms.

DFL

Usually refers to Degree of Financial Leverage, a ratio that measures the sensitivity of a company's earnings per share to fluctuations in its operating income, as affected by changes in its capital structure.

EBIT

Earnings Before Interest and Taxes, an indicator of a company's profitability excluding interest and income tax expenses.