Use a graphing utility to compute the matrix product. $$\left( \begin{array} { r r r r }
- 6 & 9 & - 5 & 1 \
9 & - 1 & - 5 & 2 \
- 5 & - 5 & 9 & - 3 \
1 & 2 & - 3 & 1
\end{array} \right) \left( \begin{array} { r r r r }
0.2 & 0.4 & 0.6 & 0.8 \
0.4 & 0.8 & 1.4 & 2.2 \
0.6 & 1.4 & 2.8 & 5 \
0.8 & 2.2 & 5 & 10
\end{array} \right)$$
A) $\left( \begin{array} { c c c c }
0.2 & 0 & 0 & 0 \
0 & 0.2 & 0 & 0 \
0 & 0 & 0.2 & 0 \
0 & 0 & 0 & 0.2
\end{array} \right)$
B) $\left( \begin{array} { c c c c }
0 & 0 & 0 & 0 \
0.2 & 0.2 & 0 & 0.2 \
0 & 0 & 0 & 0 \
0 & 0 & 0.2 & 0
\end{array} \right)$
C) $\left( \begin{array} { c c c c }
0.2 & 0.2 & 0.2 & 0.2 \
0 & 0 & 0 & 0 \
0 & 0 & 0 & 0 \
0 & 0 & 0 & 0
\end{array} \right)$
D) $\left( \begin{array} { c c c c }
0 & 0 & 0 & 0 \
0 & 0.2 & 0 & 0.2 \
0.2 & 0 & 0.2 & 0 \
0 & 0 & 0 & 0
\end{array} \right)$
E) $\left( \begin{array} { c c c c }
0 & 0 & 0 & 0.2 \
0 & 0 & 0.2 & 0 \
0 & 0.2 & 0 & 0 \
0.2 & 0 & 0 & 0
\end{array} \right)$

Question

Use a graphing utility to compute the matrix product. $$\left( \begin{array} { r r r r } 
- 6 & 9 & - 5 & 1 \
9 & - 1 & - 5 & 2 \
- 5 & - 5 & 9 & - 3 \
1 & 2 & - 3 & 1
\end{array} \right) \left( \begin{array} { r r r r } 
0.2 & 0.4 & 0.6 & 0.8 \
0.4 & 0.8 & 1.4 & 2.2 \
0.6 & 1.4 & 2.8 & 5 \
0.8 & 2.2 & 5 & 10
\end{array} \right)$$
A) $\left( \begin{array} { c c c c } 
0.2 & 0 & 0 & 0 \
0 & 0.2 & 0 & 0 \
0 & 0 & 0.2 & 0 \
0 & 0 & 0 & 0.2
\end{array} \right)$
B) $\left( \begin{array} { c c c c } 
0 & 0 & 0 & 0 \
0.2 & 0.2 & 0 & 0.2 \
0 & 0 & 0 & 0 \
0 & 0 & 0.2 & 0
\end{array} \right)$
C) $\left( \begin{array} { c c c c } 
0.2 & 0.2 & 0.2 & 0.2 \
0 & 0 & 0 & 0 \
0 & 0 & 0 & 0 \
0 & 0 & 0 & 0
\end{array} \right)$
D) $\left( \begin{array} { c c c c } 
0 & 0 & 0 & 0 \
0 & 0.2 & 0 & 0.2 \
0.2 & 0 & 0.2 & 0 \
0 & 0 & 0 & 0
\end{array} \right)$
E) $\left( \begin{array} { c c c c } 
0 & 0 & 0 & 0.2 \
0 & 0 & 0.2 & 0 \
0 & 0.2 & 0 & 0 \
0.2 & 0 & 0 & 0
\end{array} \right)$

Quizplus · Accepted Answer

The matrix product results in a diagonal matrix with 0.2 on the diagonal, which matches choice A.

Use a Graphing Utility to Compute the Matrix Product A) (0.200000.200000.200000.2)\left( \begin{array} { c c c c } 0.2 & 0 & 0 & 0 \\0 & 0.2 & 0 & 0 \\0 & 0 & 0.2 & 0 \\0 & 0 & 0 & 0.2\end{array} \right)​0.2000​00.200​000.20​0000.2​​

Use a Graphing Utility to Compute the Matrix Product A) $\left( \begin{array} { c c c c } 0.2 & 0 & 0 & 0 \\0 & 0.2 & 0 & 0 \\0 & 0 & 0.2 & 0 \\0 & 0 & 0 & 0.2\end{array} \right)$