Use the Matrix Capabilities of a Graphing Utility to Find $$\frac { 1 } { 9 } \left[ \begin{array} { c c c } - 4 & - 5 & 3 \\- 4 & - 8 & 3 \\1 & 2 & 0\end{array} \right]$$

question 34

Multiple Choice

Use the matrix capabilities of a graphing utility to find the inverse of the matrix $$\frac { 1 } { 9 } \left[ \begin{array} { c c c } - 4 & - 5 & 3 \\- 4 & - 8 & 3 \\1 & 2 & 0\end{array} \right]$$ (if it exists) .

• A)​ \[\left[ \begin{array} { c c c }
• - 9 & 12 & 6 \\
• 0 & - 3 & 0 \\
• 0 & 3 & - 9
• \end{array} \right]\]
• B)​ \[\left[ \begin{array} { c c c }
• - 6 & 6 & 9 \\
• 3 & - 3 & 0 \\
• 0 & 3 & 12
• \end{array} \right]\]
• C)​ \[\left[ \begin{array} { c c c }
• - 6 & 0 & 9 \\
• 0 & - 3 & 0 \\
• 0 & 3 & - 6
• \end{array} \right]\]
• D) \[\left[ \begin{array} { c c c }
• 3 & 3 & 9 \\
• 0 & - 3 & 0 \\
• 0 & 6 & 12
• \end{array} \right]\]
• E)​does not exist ​

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Definitions:

Numerically

Pertaining to numbers, or expressed in numbers, often relating to numerical data or mathematical calculations.

Bivariate Data Set

A type of data that involves two variables and is used to find relationships or patterns between them.

Qualitative Variable

A variable that describes non-numeric categories or characteristics.

Frequencies

The count of how often different values or categories occur in a dataset.