\begin{texdraw}
\drawdim cm

% abcisas
\move(-1.5 0)
\avec(2 0)
\rmove(0 -0.2)
\textref h:C v:T \htext{$t$}

% ordenadas
\move(0 0)
\avec(0 2)
\rmove(-0.2 0)
\textref h:R v:C \htext{$f(t)$}

%t0
\move(0.5 -0.1)
\textref h:C v:T \htext{$t_0$}

\move(-0.5 0.1)
\textref h:C v:B \htext{$t_1$}

% impulso
\arrowheadtype t:F
\arrowheadsize l:0.3 w:0.15

\move(0.5 0)
\avec(0.5 1.5)
\move(0.6 1.3)
\textref h:L v:C \htext{$\delta(t - t_0)$}

\move(-0.5 0)
\avec(-0.5 -1.5)
\move(-0.4 -1.3)
\textref h:L v:C \htext{$-\delta(t - t_1)$}


\end{texdraw}