Problem:
Multiply the scalar $-\frac{11}{9}$ and the matrix
$\left(
\begin{array}{c}
 3 \\
 5 \\
 -7 \\
 -1 \\
\end{array}
\right)$.
Answer:
$\left(
\begin{array}{c}
 -\frac{11}{3} \\
 -\frac{55}{9} \\
 \frac{77}{9} \\
 \frac{11}{9} \\
\end{array}
\right)$
{'source': 'AMPS', 'file': 'amps/mathematica/linear_algebra/multiply_by_scalar/28014.txt'}