document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1061687>Question 1061687</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the monthly cost (in dollars) of a long-distance phone plan is a linear function of the total calling time (in minutes). The monthly cost for <BR>\n" );
document.write( "55 minutes of calls is $17.32 and the monthly cost for 89 minutes is 20.38 What is the monthly cost for 65 minutes of calls? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #676530 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=676530\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x for time and y for cost\r<BR>\n" );
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document.write( "Points (x,y)\r<BR>\n" );
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document.write( "format system as <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=mx%2Bb=y ALIGN=MIDDLE  ALT=\"mx%2Bb=y\"   DISABLED_style= \"max-width:90%; height:auto;\" >;\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=system%2855m%2Bb=17.32%2C89%2Am%2Bb=20.38%29 ALIGN=MIDDLE  ALT=\"system%2855m%2Bb=17.32%2C89%2Am%2Bb=20.38%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "Ready to eliminate b using Elimination Method to find value for m.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=34m=20.38-17.32 ALIGN=MIDDLE  ALT=\"34m=20.38-17.32\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=0.09 ALIGN=MIDDLE  ALT=\"m=0.09\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=17.32-55m ALIGN=MIDDLE  ALT=\"b=17.32-55m\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=17.32-55%280.09%29 ALIGN=MIDDLE  ALT=\"b=17.32-55%280.09%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=12.37 ALIGN=MIDDLE  ALT=\"b=12.37\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "USE THE FORMULA <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=highlight%28y=0.09x%2B12.37%29 ALIGN=MIDDLE  ALT=\"highlight%28y=0.09x%2B12.37%29\"   DISABLED_style= \"max-width:90%; height:auto;\" >. </SPAN>\n" );
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