PROBLEM: For the system represented in state space as follows:
\dot{x}=\left[\begin{matrix} 1 & 3 \\ -4 & -6 \end{matrix} \right] x+\left[\begin{matrix} 1 \\ 3 \end{matrix} \right] uconvert the system to one where the new state vector, z, is
y=\left[\begin{matrix} 1 & 4 \end{matrix} \right] x