document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1125568>Question 1125568</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The car company has found that the revenue from sales of sedans is a function of the unit price p,in dollars,that it charges.If the revenue R,in dollars,is  R(p) =  1900p &#8722; 0.5p2  <BR>\n" );
document.write( "(i)  At what prices p is revenue zero? (ii) For what range of prices will revenue exceed $1.2 million? <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 #741879 by </B><A HREF=/tutors/aboutme.mpl?userid=Alex.33><B>Alex.33(110)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alex.33><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=Alex.33><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=741879\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Assume expression \"0.5p2\" means <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.5p%5E2 ALIGN=MIDDLE  ALT=\"0.5p%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > (Otherwise please re-submit your question and clearify)<BR>\n" );
document.write( "(i)<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%28p%29=0 ALIGN=MIDDLE  ALT=\"R%28p%29=0\"   DISABLED_style= \"max-width:90%; height:auto;\" >, solve for p. <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1900p-0.5p%5E2=0 ALIGN=MIDDLE  ALT=\"1900p-0.5p%5E2=0\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "hint: factor this stuff, take p out and you'll see the answer. More generally, apply the solution formula.\r<BR>\n" );
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document.write( "(ii)<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%28p%29%3E=12000000 ALIGN=MIDDLE  ALT=\"R%28p%29%3E=12000000\"   DISABLED_style= \"max-width:90%; height:auto;\" >, solve for the range of p.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1900p-0.5p%5E2%3E=1200000 ALIGN=MIDDLE  ALT=\"1900p-0.5p%5E2%3E=1200000\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "hint: for quadratic inequalities, change that inequal sign to equal and solve. Then see what of the three ranges divided by the solutions will be the answer. You may use graph(or simply the properties of quadratic graphs) to see it comfortably.\r<BR>\n" );
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document.write( "And it'll be enough for you to work it out on your own!(And trust me, after that you'll find this kind of problems EASY next time) </SPAN>\n" );
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