document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=31864>Question 31864</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi! I think this problems has to do with slope and linear equations. It would help if you could explain step by step what needs to be done and give the equation with the answer. Thanks so much! ** An antique clock is expected to be worth $350 after 2 years and $530 after 5 years. Write an equation to represent the expected value, and use it to determine the value the clock should be worth after 10 years. ** </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #18429 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=18429\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have two points: (2,350) and (5,530)<BR>\n" );
document.write( "You need an equation of the form y=mx+b<BR>\n" );
document.write( "m=(530-350)/(5-2)<BR>\n" );
document.write( "m=180/3<BR>\n" );
document.write( "m=60<BR>\n" );
document.write( "Using x=2, y=350, and m=(60) we solve for \"b\", as follows:<BR>\n" );
document.write( "350=(60)(2)+b<BR>\n" );
document.write( "b=230<BR>\n" );
document.write( "Therefore the equation is y=(60)x+230<BR>\n" );
document.write( "Finding the value of the clock after 10 years,<BR>\n" );
document.write( "let x=10 to get y=60(10)+230<BR>\n" );
document.write( "y=600+230<BR>\n" );
document.write( "y=$830\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );