Solve the System by Using the Inverse of the Coefficient $$\begin{array} { c } 5 x + 4 y = 8 \\4 x - 2 y = 22\end{array}$$

question 486

Multiple Choice

Solve the system by using the inverse of the coefficient matrix.
- $$\begin{array} { c } 5 x + 4 y = 8 \\4 x - 2 y = 22\end{array}$$

• A) \(\{ ( - 3,4 ) \}\)
• B) \(\{ ( 4 , - 3 ) \}\)
• C) \(\{ ( 3 , - 4 ) \}\)
• D) \(\{ ( - 4,3 ) \}\)

---

Definitions:

Marginal Product

The additional output that is generated by employing one more unit of input, such as labor or capital, in the production process.

Optimal Labor Employment

The level at which the addition of one more employee maximizes the organization's net productivity and profit.

Marginal Expenditure

The incremental cost associated with the purchase of an additional unit of a good or service.

Marginal Product

The increase in output that arises from an additional unit of input.