document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1196737>Question 1196737</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A train travels x miles in 2 hours.<BR>\n" );
document.write( "Write down an expression , in terms of x , for the average train speed  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #829712 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=829712\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> rate * time = distance<BR>\n" );
document.write( "solve for rate to get:<BR>\n" );
document.write( "rate = distance / time<BR>\n" );
document.write( "let y = rate and x = distance and time = 2 and the formula becomes:<BR>\n" );
document.write( "y = x / 2<BR>\n" );
document.write( "that's your formula for average train speed in terms of x.<BR>\n" );
document.write( "that equation can be graphed as shown below.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" src = \"http://theo.x10hosting.com/2022/092901.jpg\"?<BR>\n" );
document.write( "x is the distance.<BR>\n" );
document.write( "when x = 100, y = 100/2 = 50 miles per hour<BR>\n" );
document.write( "when x = 150, y = 150/2 = 75 miles per hour.<BR>\n" );
document.write( "time in this equation is always 2 hours. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );