document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1144987>Question 1144987</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The phone company NextFell has a monthly cellular plan where a customer pays a flat monthly fee and then a certain amount of money per minute used on the phone. If a customer uses 210 minutes, the monthly cost will be $59. If the customer uses 700 minutes, the monthly cost will be $108. A) Find the slope and explain what it means.\r<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 #766643 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=766643\">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=y=mx%2Bb ALIGN=MIDDLE  ALT=\"y=mx%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
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document.write( "y, cost for a month<BR>\n" );
document.write( "x, minutes used<BR>\n" );
document.write( "m, cost change per minutes used change; the per minute rate<BR>\n" );
document.write( "b, flat fee\r<BR>\n" );
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document.write( "Two points described are  (210, 59) and (700, 108).<BR>\n" );
document.write( "The cost per minute is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%28108-59%29%2F%28700-210%29 ALIGN=MIDDLE  ALT=\"m=%28108-59%29%2F%28700-210%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >;<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=0.100 ALIGN=MIDDLE  ALT=\"m=0.100\"   DISABLED_style= \"max-width:90%; height:auto;\" ><IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=dollars%2Fminute ALIGN=MIDDLE  ALT=\"dollars%2Fminute\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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