Perform the Indicated Operation $$\left[ \begin{array} { r } 3 \\- 1 \\- 4\end{array} \right] + \left[ \begin{array} { r } - 5 \\6 \\9\end{array} \right]$$

question 136

Multiple Choice

Perform the indicated operation.
- $$\left[ \begin{array} { r } 3 \\- 1 \\- 4\end{array} \right] + \left[ \begin{array} { r } - 5 \\6 \\9\end{array} \right]$$

• A) \(\left[ \begin{array} { r r } 3 & - 5 \\ - 1 & 6 \\ - 4 & 9 \end{array} \right]\)
• B) \(\left[ \begin{array} { l } 2 \\ 5 \\ 6 \end{array} \right]\)
• C) \(\left[ \begin{array} { l l l } - 2 & 5 & 5 \end{array} \right]\)
• D) \(\left[ \begin{array} { r } - 2 \\ 5 \\ 5 \end{array} \right]\)

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Definitions:

Conjectural Variation

An expectation of how rival firms will react to a change in the quantity and price of goods a firm markets.

Demand Function

A mathematical formula that describes the relationship between the quantity demanded of a good and its various determinants such as price, income, and substitute prices.

Cournot Equilibrium Price

A concept in economics where firms reach a state in which each firm chooses the quantity to produce to maximize its profit, given the quantities chosen by other firms in the market.

Inverse Demand Function

A mathematical representation showing the relationship between the price of a good and the quantity demanded, expressed as price as a function of quantity.