The transformation $\text E\,\vec{x}$ is defined by the following matrix. $\text E = \left[\begin{array}{rr}2 & 7 & 9 & 10\\ 1 & 2 & -3 & 4\\ 0 & -2 & 1 & 2\\ 9 & 0 & 0 & 0\end{array}\right]$ **Find the result of $\text E\,\vec{v}$ for $\vec{v}=\left[\begin{array}{r} 1 \\ 2 \\ -1 \\4\end{array}\right]$.** [[☃ matrix 1]]