Given the matrix $\left[\begin{array}{cc}-4 & 2 \\ 4 & 3\end{array}\right]$, the eigenvector is
- $\left[\begin{array}{l}3 \\ 2\end{array}\right]$
- $\left[\begin{array}{l}4 \\ 3\end{array}\right]$
- $\left[\begin{array}{c}2 \\ -1\end{array}\right]$
- $\left[\begin{array}{c}-2 \\ 1\end{array}\right]$