\input epsf
\nopagenumbers
\magnification=\magstep1

\vskip -1.4in


\noindent {\bf Problem statement} Below is a graph of $y=f(x)$.  Label
any points on the graph which occur in your discussion of the
questions below.

\medskip 

\centerline{\epsfxsize=3in\epsfbox{w1C.eps}}

\medskip

\noindent a) Where is $f$ not continuous? Why?

\medskip

\noindent b) Where is $f$ not differentiable? Why?

\medskip

\noindent c) Sketch a graph of $y=f'(x)$ wherever $f'$ is defined.





\vfil\eject\end