document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=726864>Question 726864</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In class homework im completely lost help is needed very urgently<BR>\n" );
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document.write( "A video game store sells video games for $30 each. The store has a coupon for $9 off the total purchase for up to 10 games.<BR>\n" );
document.write( "a) Determine the equation and graph the function that describes the relationship between the total cost and the number of video games a customer buys.<BR>\n" );
document.write( "(just need help with equation), \r<BR>\n" );
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document.write( "and state domain and range </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #444888 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39618)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=444888\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Help with the formula:\r<BR>\n" );
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document.write( "Let n = how many video games being purchased for a total purchase.<BR>\n" );
document.write( "$30/game and letting p = purchase value including the applied savings deal, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=p=30n-9n ALIGN=MIDDLE  ALT=\"p=30n-9n\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "The description also includes restrictions making effect on the domain for p.  \r<BR>\n" );
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document.write( "n is a natural number between 1 and 10 inclusive.\r<BR>\n" );
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document.write( "CONTINUED ANSWER DISCUSIION<BR>\n" );
document.write( "Although developed as if to be a linear equation, this problem really describes an Arithmetic sequence.  The first term is 30-9=21, and the common difference among neighboring terms is (60-18)-21=21.  The sequence is also finite, since the terms are 21, 42,63, 84, 105, 126, 147, 168, 189, 210.  21 is for n=1 and 210 is for n=10.  These are ten specific points which fit on a line, but they are still ten specific points and they may be graphed as functions of the natural number between 1 and 10 inclusive. </SPAN>\n" );
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