document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=173001>Question 173001</A>: <I><SPAN STYLE=\"word-break: break-all;\"> You and your friends want to open a company to sell \"Math is fun\" t-shirts. Each shirt costs $5 and you sell them for $9.50. Please show all work.<BR>\n" );
document.write( "a.Write a function that represents how much money would you spend if you buy x number of t-shirts.<BR>\n" );
document.write( "b. Write a function that represents the total money you would make selling x number of t-shirts.<BR>\n" );
document.write( "c. Using part a and b. Write a function rule for your profit.<BR>\n" );
document.write( "d. Create a function table for your above function. Is the function of direct variation or indirect variation? If so, write the function in form of a direct or indirect equation.\r<BR>\n" );
document.write( "\n" );
document.write( "Can you please help me because I'm having a lot of problems with this type of algebra?  <BR>\n" );
document.write( "Thank you very much. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #127863 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=127863\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%28x%29 ALIGN=MIDDLE  ALT=\"c%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >= cost of tee-shirts<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%28x%29 ALIGN=MIDDLE  ALT=\"m%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >= money made selling tee-shirts<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=c%28x%29+=+5x ALIGN=MIDDLE  ALT=\"c%28x%29+=+5x\"   DISABLED_style= \"max-width:90%; height:auto;\" >dollars<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m%28x%29+=+9.5x ALIGN=MIDDLE  ALT=\"m%28x%29+=+9.5x\"   DISABLED_style= \"max-width:90%; height:auto;\" >dollars<BR>\n" );
document.write( "Let <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%28x%29+=+m%28x%29+-+c%28x%29 ALIGN=MIDDLE  ALT=\"p%28x%29+=+m%28x%29+-+c%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > where <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%28x%29 ALIGN=MIDDLE  ALT=\"p%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > is profit<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%28x%29+=+9.5x+-+5x ALIGN=MIDDLE  ALT=\"p%28x%29+=+9.5x+-+5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%28x%29+=+4.5x ALIGN=MIDDLE  ALT=\"p%28x%29+=+4.5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is read: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p ALIGN=MIDDLE  ALT=\"p\"   DISABLED_style= \"max-width:90%; height:auto;\" > as a function of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > equals <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4.5x ALIGN=MIDDLE  ALT=\"4.5x\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "This is a direct variation, since if <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > increases 1% or<BR>\n" );
document.write( "any percent, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p%28x%29 ALIGN=MIDDLE  ALT=\"p%28x%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > increases the same percent<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "x  --  p(x)<BR>\n" );
document.write( "-----------<BR>\n" );
document.write( "1  --  4.5<BR>\n" );
document.write( "2  --  9<BR>\n" );
document.write( "3  --  13.5<BR>\n" );
document.write( "Notice that when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > went from 2 to 3 it increased 50%<BR>\n" );
document.write( "and p(x) went from 9 to 13.5, also increasing 50% </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );