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example made impersonal to fit with the tone of the rest of the manual

    1: \label{Numerical_Response_Advanced_Example}
    2: 
    3: %
    4: \begin{figure}
    5: \begin{center}\includegraphics[  width=0.80\paperwidth]{numericalResponseSlopeProblem}\end{center}
    6: 
    7: 
    8: \caption{Slope Problem Parameters\label{Slope Problem Parameters Figure}}
    9: \end{figure}
   10:  Try filling out your problem with the parameters shown in the ``Slope
   11:  Problem Parameters'' figure. 
   12: 
   13: When creating randomized problems, you want to make sure that the problems
   14: always have an answer. Consider what might happen if two
   15: slopes are chosen, \emph{both} with the expression \texttt{\&random(-1.0,1.0,.2)}. One
   16: out of ten students would get a problem where both slopes were equal, which
   17: has either no solution (for unequal y-intercepts) or an infinite number of
   18: solutions (for equal slopes and y-intercepts). Both of these cause a division-by-zero
   19: error on the division that computes the answer. There are many ways to avoid
   20: this, one of the easiest of which is picking one slope negative and one positive.
   21: This same problem can show up in many other places as well, so be careful.