\input epsf
\nopagenumbers
\magnification=\magstep1

\noindent {\bf Problem statement} Determine the inverse function of
each of the following functions:

\medskip

\settabs 4 \columns
\+ a) \ $f_1(x) = 2x - 3$
&  b) \ $f_2(x) = x^3 - 8$
&  c) \ $\displaystyle f_3(x) = {{2x + 3} \over {x + 2}} $
&  d) \ $\displaystyle f_4(x) = {{e^x} \over {e^x + 1}}$ \cr

%contributed by Michael O'Nan







\vfil\eject\end