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\leftline{Mathematics 133 -- Intensive Calculus for Science 1}
\leftline{Quiz 3 -- September 23, 2005}
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\leftline{Your Name: $\underline{\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ }$}
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Do all work on this sheet (front and back if needed).  You have 20 minutes.
{\bf No calculators on this quiz}.
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A)  This is part of the graph of a periodic function of $x$.  Give a possible
formula for the function:
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\vglue 2.0truein
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B) The following graph shows the graph of a
polynomial function $y = f(x)$ (the plot
shows a big enough $x$-range so that we are seeing all relevant features).  
What is the smallest possible degree of the polynomial $f(x)$?
\vglue 2.0truein
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C)  Which of the following two graphs shows $y = {x^2 - 9\over x^2 + 1}$.
Explain how you can tell.
\bye