document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=362033>Question 362033</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Happy Tuesday everyone! I am looking for some expertise when it comes to solving \"story\" or \"word\" problems dealing with quadratic equations. My teacher requires that when we work through a problem that we show her all of the steps to show what we did to get our answer. I was wondering if you could help me? \r<BR>\n" );
document.write( "\n" );
document.write( "11.5, #10\r<BR>\n" );
document.write( "\n" );
document.write( "Directions: Solve\r<BR>\n" );
document.write( "\n" );
document.write( "10.) The daily number of request, f(x), for a song that a local radio station receives can be modeled by f(x)=x^2-5x+11 (it should read x squared)<BR>\n" );
document.write( "where x is the number of days after the song has been released. During which time period will the daily number of requests be below 7? \r<BR>\n" );
document.write( "\n" );
document.write( "The book shows the answer to be: between day 1 and 4. But, I have not a clue what steps I need to perform to get this as my final outcome. Thanks so much!  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #258112 by </B><A HREF=/tutors/aboutme.mpl?userid=solver91311><B>solver91311(24713)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=solver91311><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=solver91311><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=258112\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font face=\"Garamond\" size=\"+2\">\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "The graph of your function is a parabola opening upward.  What you want are the x-coordinates of the two intersecting points between your parabola and the horizontal line <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large y\ =\ 7\">.  All you need to do is set your function equal to 7 and then solve the resulting quadratic equation.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ x^2\ -\ 5x\ +\ 11\ =\ 7\">\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE \ \ \ \ \ \ \ \ \ \ x^2\ -\ 5x\ +\ 4\ =\ 0\">\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Solve for <IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\Large x\">. Hint: It factors.\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "John<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=\"/cgi-bin/rendertex.cgi?\LARGE e^{i\pi} + 1 = 0\"><BR>\n" );
document.write( "My calculator said it, I believe it, that settles it<BR>\n" );
document.write( "<div  DISABLED_style= \"text-align:center\"><a  rel=nofollow HREF=\"http://outcampaign.org/\" target=\"_blank\"><IMG STYLE=\"max-width:80%;\" src=\"http://cdn.cloudfiles.mosso.com/c116811/scarlet_A.png\" border=\"0\" alt=\"The Out Campaign: Scarlet Letter of Atheism\" width=\"143\" height=\"122\" /></a></div><BR>\n" );
document.write( "</font> </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );