document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1196026>Question 1196026</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Josel buys cell-phone services from a company that charges a minimum of $20 per<BR>\n" );
document.write( "month. For that $20, he is allowed 100 minutes of free calls. For any calls above<BR>\n" );
document.write( "100 minutes, he pays 50 cents per additional minute. Sketch a graph that describes<BR>\n" );
document.write( "Josel’s monthly bill as a function of total time. Clearly label your graph.<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 #828689 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=828689\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the equation would be y = 20 + .5 * (x - 100) for x > 100<BR>\n" );
document.write( "with x = 100, the cost is 20.<BR>\n" );
document.write( "with x = 200, the cost is 20 + .5 * 100 = 70.<BR>\n" );
document.write( "here's my sketch of the graph.<BR>\n" );
document.write( "y is the total cost per month.<BR>\n" );
document.write( "x is the number of minutes used per month.<BR>\n" );
document.write( "any minutes over 100 will kick in the incremental cost of 50 cents a minute on top of the 20 dollars for the first 100 minutes.<BR>\n" );
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