document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1187270>Question 1187270</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A certain electronics manufacturer found that the average cost C to produce x DVD/Blu- ray players can be found using the equation C=0.04x2 squared −4x + 800\r<BR>\n" );
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document.write( " . What is the minimum average cost per machine and how many DVD/Blu-ray players should be built in order to achieve that minimum?\r<BR>\n" );
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document.write( "The number of DVD/Blu-ray players that should be build to achieve the minimum is\r<BR>\n" );
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document.write( "The minimum average cost is \r<BR>\n" );
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document.write( "**Answer both to the nearest whole number.<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #818289 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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/cgi-bin/show-face.mpl?user=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=818289\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A certain electronics manufacturer found that the average cost C to produce x DVD/Blu- ray players can be found using the equation:<BR>\n" );
document.write( " <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C+=+0.04x%5E2+-+4x+%2B+800 ALIGN=MIDDLE  ALT=\"C+=+0.04x%5E2+-+4x+%2B+800\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "What is the minimum average cost per machine and how many DVD/Blu-ray players should be built in order to achieve that minimum?<BR>\n" );
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document.write( "Find the axis of symmetry of this quadratic equation using x = -b/(2a)<BR>\n" );
document.write( "where a=.04, b=-4<BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28-%28-4%29%29%2F%282%2A.04%29 ALIGN=MIDDLE  ALT=\"%28-%28-4%29%29%2F%282%2A.04%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%2F.08 ALIGN=MIDDLE  ALT=\"4%2F.08\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "x = 50 units for minimum average cost<BR>\n" );
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document.write( "Find the actual cost then<BR>\n" );
document.write( "C = .04(50^2) - 4(50) + 800<BR>\n" );
document.write( "C = 100 - 200 + 800<BR>\n" );
document.write( "C = $700\r<BR>\n" );
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