Determine the Size of Matrix a and Tell Whether It

question 74

Multiple Choice

Determine the size of matrix A and tell whether it is a square matrix, row matrix, column matrix, or none of these.
- $$A = \left[ \begin{array} { r r r r r } 9 & - 14 & 11 & - 6 & - 11 \\- 10 & 0 & 12 & - 3 & \pi \\- 13 & - 4 & 12 & 9 & - 6 \\\sqrt { 3 } & - 14 & - 3 & 11 & 15\end{array} \right]$$

• A)4 × 5; none of these
• B)5 × 4; none of these
• C)4 × 4; square matrix
• D)20; row matrix

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Definitions:

Demand Curve

A graphical representation showing the relationship between the price of a good or service and the quantity demanded at various prices.

Quantity Demanded

The specific amount of a good or service consumers are willing to buy at a given price point, holding all else constant.

Quantity Supplied

The total amount of a good that producers are willing to sell at a given price over a specific time period.

Shortage

A situation in which demand for a good or service exceeds the available supply at a specific price.