Use the Given Row Transformation to Change the Matrix as Indicated

question 490

Multiple Choice

Use the given row transformation to change the matrix as indicated.
- $\left[ \begin{array} { r r r } 2 & 1 & 4 \\ - 4 & 3 & - 1 \\ 7 & 4 & 0 \end{array} \right] ; 2$ times row 1 added to row 2

• A)
• \(\left[ \begin{array} { l l l } 2 & 1 & 4 \\ 0 & 5 & 7 \\ 7 & 4 & 0 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { r r r } 2 & 1 & 4 \\ - 4 & 3 & - 1 \\ 11 & 6 & 8 \end{array} \right]\)
• C)
• \(\left[\begin{array}{lll}
• 2 & 1 & 4 \\
• 0 & 3 & 7 \\
• 7 & 4 & 0
• \end{array}\right]\)
• D)
• \(\left[\begin{array}{lll}
• 4 & 2 & 8 \\
• 0 & 5 & 7 \\
• 7 & 4 & 0
• \end{array}\right]\)

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Definitions:

Alcohol Abuse

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Poor Judgment

The tendency to make decisions or take actions that are not well considered or wise, often leading to unfavorable outcomes.

Wishful Thinking

The formation of beliefs based on what is desired to be true rather than on evidence, reality, or rationality.

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Rapid and often extreme fluctuations in emotional state, ranging from euphoria to despair.