document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=147714>Question 147714</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Find the max revenue of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=-15p%5E2%2B300p%2B1200 ALIGN=MIDDLE  ALT=\"R=-15p%5E2%2B300p%2B1200\"   DISABLED_style= \"max-width:90%; height:auto;\" > by use of a graph. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #108092 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=108092\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If we graph <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=-15p%5E2%2B300p%2B1200 ALIGN=MIDDLE  ALT=\"R=-15p%5E2%2B300p%2B1200\"   DISABLED_style= \"max-width:90%; height:auto;\" > using a graphing calculator, we get:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+drawing%28500%2C+500%2C+-50%2C+50%2C+-350%2C+3000%2C%0D%0A+graph%28+500%2C+500%2C+-50%2C+50%2C+-350%2C+3000%2C+-15x%5E2%2B300x%2B1200++%29%0D%0A%0D%0A%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" > Graph of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=-15p%5E2%2B300p%2B1200 ALIGN=MIDDLE  ALT=\"R=-15p%5E2%2B300p%2B1200\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "From the graph, we can see that the highest point on the graph is (10,2700) (you can use the \"min/max\" feature to find this point).\r<BR>\n" );
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document.write( "Since the highest point has the y-value 2700, this means that the max revenue is $2700. This max revenue occurs when the price is $10 (since the x-value of the vertex is x=10).\r<BR>\n" );
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document.write( "Also, the reason why the graph is parabolic is because the equation is a quadratic. </SPAN>\n" );
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