document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=65902>Question 65902</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0130442631/algebrahomeworkh>Algebra 1</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> The total length (l) of a certain species of snake is related linearly to the tail length (t) of this snake.  Here are the measurements for two snakes of this species.  Snake 1:l=150 mm and t=19 mm; snake 2:l=300 mm and t=40 mm.  Use the ordered pairs (l, t).<BR>\n" );
document.write( "a. Find the linear equation for these data points.<BR>\n" );
document.write( "b. Use this linear equation to estimate the tail length of a snake with a total length of 200 mm.<BR>\n" );
document.write( "c. Use this linear equation to estimate the tail length of a snake with a total length of 350 mm.  <BR>\n" );
document.write( "THANK YOU!!! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #46662 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=46662\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The total length (l) of a certain species of snake is related linearly to the tail length (t) of this snake.  Here are the measurements for two snakes of this species.  Snake 1:l=150 mm and t=19 mm; snake 2:l=300 mm and t=40 mm.  Use the ordered pairs (l, t).<BR>\n" );
document.write( "---------------<BR>\n" );
document.write( "You have two points in the form (l,t): (150,19) and (300,40)<BR>\n" );
document.write( "a. Find the linear equation for these data points.<BR>\n" );
document.write( "slope=[40-19]/[300-140]=21/150=7/50<BR>\n" );
document.write( "intercept: 40=(7/50)(300)+b; 40=42+b; b=-2<BR>\n" );
document.write( "EQUATION: tail=(7/50)(length)-2<BR>\n" );
document.write( "b. Use this linear equation to estimate the tail length of a snake with a total length of 200 mm.<BR>\n" );
document.write( "t=(7/50)200-2<BR>\n" );
document.write( "t=26 mm<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "c. Use this linear equation to estimate the tail length of a snake with a total length of 350 mm. <BR>\n" );
document.write( "t=(7/50)(350)-2<BR>\n" );
document.write( "t=47 mm<BR>\n" );
document.write( "----------<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );