Solve the System by Elimination $$\begin{array} { l } \frac { 9 x } { 4 } + \frac { y } { 4 } = - 2 \\\frac { x } { 4 } + \frac { y } { 4 } = 0\end{array}$$

question 49

Multiple Choice

Solve the system by elimination.
- $$\begin{array} { l } \frac { 9 x } { 4 } + \frac { y } { 4 } = - 2 \\\frac { x } { 4 } + \frac { y } { 4 } = 0\end{array}$$

• A) \(\left\{ \left( - \frac { 1 } { 2 } , \frac { 1 } { 2 } \right) \right\}\)
• B) \(\left\{ \left( - \frac { 4 } { 5 } , \frac { 4 } { 5 } \right) \right\}\)
• C) \(\{ ( - 16,16 ) \}\)
• D) \(\{ ( - 1,1 ) \}\)

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Definitions:

TC

In economics, often stands for Total Cost, which is the complete cost of production including both variable and fixed costs.

Total Variable Costs

Total Variable Costs are the cumulative expenses that change in proportion to the level of goods or services produced, including costs such as raw materials and labor.

Total Cost

The sum of all expenses incurred in the production of goods or delivery of services, including fixed and variable costs.

Marginal Cost Curve

The graphical representation that shows how the cost of producing one additional unit changes as production volume increases.