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On January 4, 1978 the price of a stembolt was $49.70. On January 4, 1989 the price of a stembolt was $41.03. Find the average rate of change in the price of a stembolt from 1978 to 1989. Round to the nearest cent.


The average rate of change is \(\displaystyle \frac{41.03-49.70}{1989-1978}= -0.79\) dollars per year.

Download \(\LaTeX\)

\begin{question}On January 4, 1978 the price of a stembolt was \$49.70.  On January 4, 1989 the price of a stembolt was \$41.03.  Find the average rate of change in the price of a stembolt from 1978 to 1989. Round to the nearest cent.
    \soln{9cm}{The average rate of change is $\frac{41.03-49.70}{1989-1978}= -0.79$ dollars per year.}

\end{question}

Download Question and Solution Environment\(\LaTeX\)
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\begin{document}\begin{question}(10pts) The question goes here!
    \soln{9cm}{The solution goes here.}

\end{question}\end{document}
HTML for Canvas
<p> <p>On January 4, 1978 the price of a stembolt was &#36;49.70.  On January 4, 1989 the price of a stembolt was &#36;41.03.  Find the average rate of change in the price of a stembolt from 1978 to 1989. Round to the nearest cent.</p> </p>
HTML for Canvas
<p> <p>The average rate of change is  <img class="equation_image" title=" \displaystyle \frac{41.03-49.70}{1989-1978}= -0.79 " src="/equation_images/%20%5Cdisplaystyle%20%5Cfrac%7B41.03-49.70%7D%7B1989-1978%7D%3D%20-0.79%20" alt="LaTeX:  \displaystyle \frac{41.03-49.70}{1989-1978}= -0.79 " data-equation-content=" \displaystyle \frac{41.03-49.70}{1989-1978}= -0.79 " />  dollars per year.</p> </p>