document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=34572>Question 34572</A>: <I><SPAN STYLE=\"word-break: break-all;\"> need help with the following:\r<BR>\n" );
document.write( "\n" );
document.write( "1. The table below shows the comparison of the cost, in dollars, of a $100,000 life insurance policy for female nonsmokers at certain ages \r<BR>\n" );
document.write( "\n" );
document.write( "Age, a 	Cost, C <BR>\n" );
document.write( "31 	170 <BR>\n" );
document.write( "32 	172 <BR>\n" );
document.write( "33 	176 <BR>\n" );
document.write( "34 	178 <BR>\n" );
document.write( "35 	182 \r<BR>\n" );
document.write( "\n" );
document.write( "Model the data with a linear function using age 32 and 35. \r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "2. Using the line in Exercise 2, predict the cost of the life insurance for a female nonsmoker of age 40. \r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #20859 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=20859\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You have two points: (32,172) and (35,182)<BR>\n" );
document.write( "You want an equation of the form y=mx+b<BR>\n" );
document.write( "m=[182-172]/[35-32]<BR>\n" );
document.write( "m=10/3<BR>\n" );
document.write( "Using the point (32,172) in the equation y=mx+b<BR>\n" );
document.write( "you get:<BR>\n" );
document.write( "172=(10/3)(32)+b<BR>\n" );
document.write( "b=65 1/3<BR>\n" );
document.write( "Your equation is y=(10/3)x+(196/3)<BR>\n" );
document.write( "Now, find \"y\" if x=40:<BR>\n" );
document.write( "y=(10/3)40+(196/3)<BR>\n" );
document.write( "y=198.67<BR>\n" );
document.write( "It looks like your data takes a strange jump at age 35; should it?<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );