document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1163456>Question 1163456</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In an online shopping rebate program, customers recieve a rebate of a given percent of their purchase amount until they reach a certain minimum threshold in a month. They recieve a larger percentage rebate on any additional purchases beyond this threshold. If a customer spends more than his minimun threshold in a month, his total rebate is given by the function R=4x + (x+5)(0.01z-4). Which of the following statements is true?\r<BR>\n" );
document.write( "\n" );
document.write( "a) the initial threshold is 1,000.<BR>\n" );
document.write( "b) x represents the total amount the customer spends.<BR>\n" );
document.write( "c) x represents the percentage discount for the purchases over the threshold.<BR>\n" );
document.write( "d) the initial threshold is 400. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #853803 by </B><A HREF=/tutors/aboutme.mpl?userid=KMST><B>KMST(5345)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=KMST><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=KMST><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=853803\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\">  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=4x%2B%28x%2B5%29%2A%280.01z-4%29 ALIGN=MIDDLE  ALT=\"R=4x%2B%28x%2B5%29%2A%280.01z-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=4x%2B0.01zx-4x%2B0.05z-20%29 ALIGN=MIDDLE  ALT=\"R=4x%2B0.01zx-4x%2B0.05z-20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=4x%2B0.01zx-4x%2B0.05z-20%29 ALIGN=MIDDLE  ALT=\"R=4x%2B0.01zx-4x%2B0.05z-20%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=0.01zx%2B0.05%28z-20%2F0.05%29 ALIGN=MIDDLE  ALT=\"R=0.01zx%2B0.05%28z-20%2F0.05%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R=0.01xz%2B0.05%28z-400%29 ALIGN=MIDDLE  ALT=\"R=0.01xz%2B0.05%28z-400%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The term <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.01xz ALIGN=MIDDLE  ALT=\"0.01xz\"   DISABLED_style= \"max-width:90%; height:auto;\" > represents <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%22x%25%22 ALIGN=MIDDLE  ALT=\"%22x%25%22\"   DISABLED_style= \"max-width:90%; height:auto;\" > of the amount <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The term <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.05%28z-400%29%7D%7D%5D+represents+an+extra+%7B%7B%7B%225%25%22 ALIGN=MIDDLE  ALT=\"0.05%28z-400%29%7D%7D%5D+represents+an+extra+%7B%7B%7B%225%25%22\"   DISABLED_style= \"max-width:90%; height:auto;\" > of the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > in excess over <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=400 ALIGN=MIDDLE  ALT=\"400\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "The initial threshold is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28400%29 ALIGN=MIDDLE  ALT=\"highlight%28400%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=z ALIGN=MIDDLE  ALT=\"z\"   DISABLED_style= \"max-width:90%; height:auto;\" > represents the total amount the customer spends in a month<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" > represent the percentage of rebate for purchases up to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=400%2Fmonth ALIGN=MIDDLE  ALT=\"400%2Fmonth\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Any excess over that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=400 ALIGN=MIDDLE  ALT=\"400\"   DISABLED_style= \"max-width:90%; height:auto;\" > threshold of monthly expenses results in an additional <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%225%25%22 ALIGN=MIDDLE  ALT=\"%225%25%22\"   DISABLED_style= \"max-width:90%; height:auto;\" > rebate. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );