a)
\(g: \vec{x}=\begin{pmatrix}4\\ 6\end{pmatrix}+\alpha \begin{pmatrix}1\\ 0\end{pmatrix},\: h:\vec{x}=\begin{pmatrix}4\\ 6\end{pmatrix}+\beta\begin{pmatrix}0\\1\end{pmatrix}\)
b)
\(g: \vec{x}=\begin{pmatrix}4\\ -5\end{pmatrix}+\alpha \begin{pmatrix}1\\ 0\end{pmatrix},\: h:\vec{x}=\begin{pmatrix}-2\\ 1.5\end{pmatrix}+\beta\begin{pmatrix}1\\0\end{pmatrix}\)
c)
\(i: \vec{x}=\begin{pmatrix}4\\ -5\end{pmatrix}+\alpha \begin{pmatrix}0\\ 1\end{pmatrix}\)