Perform the Matrix Operation $A = \left[ \begin{array} { c c } - 2 & 3 \\ - 7 & - 2 \end{array} \right]$

question 46

Multiple Choice

Perform the matrix operation.
-Let $A = \left[ \begin{array} { c c } - 2 & 3 \\ - 7 & - 2 \end{array} \right]$ and $B = \left[ \begin{array} { c c } 2 & 10 \\ - 7 & 6 \end{array} \right]$ . Find $A - B$ .

• A)
• \(\left[ \begin{array} { c c } 4 & - 7 \\ - 14 & 4 \end{array} \right]\)
• B)
• \(\left[ \begin{array} { c c } - 4 & - 7 \\ 0 & - 8 \end{array} \right]\)
• C)
• \(\left[ \begin{array} { l l } 0 & - 7 \\ 0 & - 8 \end{array} \right]\)
• D)
• \(\left[ \begin{array} { c c } 0 & 7 \\ - 14 & 8 \end{array} \right]\)

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Definitions:

Adjustable Opening

A mechanism or feature that allows the size of an opening to be altered or adjusted as needed.

Pupil

The opening in the center of the iris of the eye, which adjusts in size to regulate the amount of light reaching the retina.

Upside-down Image

The phenomenon where images projected onto the retina are perceived as upright due to the brain's processing, despite being inverted.

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light images into electrical signals sent to the brain.