Perform Matrix Row Operations
- $\left[ \begin{array} { r r r | r } 5 & - 4 & 1 & 4 \\ - 5 & 0 & 2 & - 3 \\ - 1 & 1 & - 2 & - 1 \end{array} \right] - 5 R _ { 1 } + R _ { 2 }$

question 111

Multiple Choice

Perform Matrix Row Operations
- $\left[ \begin{array} { r r r | r } 5 & - 4 & 1 & 4 \\ - 5 & 0 & 2 & - 3 \\ - 1 & 1 & - 2 & - 1 \end{array} \right] - 5 R _ { 1 } + R _ { 2 }$

• A)
• \(\left[ \begin{array} { r r r | r } 5 & - 4 & 1 & 4 \\ - 30 & 20 & - 3 & - 23 \\ - 1 & 1 & - 2 & - 1 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { c r r | c } 5 & - 4 & 1 & 4 \\ 20 & - 20 & 7 & 17 \\ - 1 & 1 & - 2 & - 1 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { r r r | r } 30 & - 4 & - 9 & 19 \\ - 5 & 0 & 2 & - 3 \\ - 1 & 1 & - 2 & - 1 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { c r r | r } - 30 & 20 & - 3 & - 23 \\ - 5 & 0 & 2 & - 3 \\ - 1 & 1 & - 2 & - 1 \end{array} \right]\)

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Definitions:

Protract

To draw out or lengthen in time; extend.

Retract

To draw back or withdraw, often used in the context of statements being taken back or anatomical parts being pulled towards the body.

Hyperextend

To hyperextend means to extend a limb or joint beyond its normal range of motion, often resulting in injury.

Medial Excursion

The movement of the mandible toward the midline of the face, which is a component of the chewing cycle.