\begin{texdraw}
\drawdim cm

% abcisas
\move(-2 0)
\avec(1 0)
\rmove(0 -0.2)
\textref h:C v:T \htext{$\sigma$}

% ordenadas
\move(0 -1.1)
\avec(0 1.5)
\rmove(-0.2 0)
\textref h:R v:C \htext{$j\omega$}

%-3
\move (-0.75 0)
\textref h:C v:C \htext{x}
\rmove(0 -0.2)
\textref h:C v:T \htext{$-3$}

%-6
\move (-1.5 0)
\textref h:C v:C \htext{x}
\rmove(0 -0.2)
\textref h:C v:T \htext{$-6$}

\end{texdraw}