<PRE><B>Question 190088</B>
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Yep, that&#39;s exactly right as long as you realize that your independent variable represents the price &lt;i&gt;&lt;b&gt;differential&lt;/b&gt;&lt;/i&gt;.  In other words, the actual price of a ticket is 20 - &lt;i&gt;x&lt;/i&gt;.


That means you have some restrictions on the domain of your function.  For one thing, &lt;i&gt;x&lt;/i&gt; has to be less than 20 (unless the play is &lt;i&gt;&lt;b&gt;so&lt;/b&gt;&lt;/i&gt; bad they have to pay people to attend) and &lt;i&gt;x&lt;/i&gt; has to be less than 35 or they would sell zero tickets.


John
*[tex \LARGE e^{i\pi} + 1 = 0]
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