document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=944445>Question 944445</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A train operating company sells tickets prices using the equation y=0.8+0.2x, where y is the ticket prices in pound and x the number of miles traveled.\r<BR>\n" );
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document.write( "1) work out the cost of a ticket for a 4 miles journey<BR>\n" );
document.write( "2)the cost of a 5 miles journey<BR>\n" );
document.write( "3) graph the equation and use it to answer the following<BR>\n" );
document.write( "  (a) the miles traveled if the cost is 3 pounds<BR>\n" );
document.write( "   (b) cost when the miles traveled are 1.5 pounds </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #576640 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=576640\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 1) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.8%2B0.2%284%29=0.8%2B0.8=1.6 ALIGN=MIDDLE  ALT=\"y=0.8%2B0.2%284%29=0.8%2B0.8=1.6\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "2) <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=0.8%2B0.2%285%29=0.8%2B1.0=1.8 ALIGN=MIDDLE  ALT=\"y=0.8%2B0.2%285%29=0.8%2B1.0=1.8\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "3)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=drawing%28300%2C300%2C-2%2C14%2C-2%2C6%2Cgrid%281%29%2Cgreen%28line%28-10%2C3%2C20%2C3%29%29%2Cblue%28line%28-10%2C1.5%2C20%2C1.5%29%29%2Ccircle%283.5%2C1.5%2C0.25%29%2Ccircle%2811%2C3%2C0.25%29%2Cline%280%2C0.8%2C20%2C4.8%29%29 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "a) When the cost is 3 pounds, follow the green line until it intersects.<BR>\n" );
document.write( "Looks like about 11 miles.<BR>\n" );
document.write( "Verify using the equation.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.8%2B0.2x=3 ALIGN=MIDDLE  ALT=\"0.8%2B0.2x=3\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.2x=2.2 ALIGN=MIDDLE  ALT=\"0.2x=2.2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=11 ALIGN=MIDDLE  ALT=\"x=11\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( ".<BR>\n" );
document.write( ".<BR>\n" );
document.write( "b) When the cost is 1.5 pounds, follow the blue line until it intersects.<BR>\n" );
document.write( "Looks like about 3.5 miles.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.8%2B0.2x=1.5 ALIGN=MIDDLE  ALT=\"0.8%2B0.2x=1.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.2x=0.7 ALIGN=MIDDLE  ALT=\"0.2x=0.7\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=3.5 ALIGN=MIDDLE  ALT=\"x=3.5\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );