Sketch a graph with the following properties. Your graph should be drawn very clearly with axes labeled.
$
\begin{aligned}
& f^{\prime \prime}(x)>0 \text { over }(-\infty, 3) \\
& f^{\prime}(x)<0 \text { over }(3, \infty)
\end{aligned}
$
There is a discontinuity at $x=1$
$
f(1)=5
$