document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1194101>Question 1194101</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The median age of men at first marriage in 1970 was 23.2, and 29.2 in 2015.  \r<BR>\n" );
document.write( "\n" );
document.write( "a.) Use the two data points to find a linear function that fits the data.  Let x =the number of years after 1970 and A=the median age at first marriage x years after 1970.\r<BR>\n" );
document.write( "\n" );
document.write( "b.) Use the function to estimate the median age of men at first marriage in 2008 and in 2019. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #826240 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=826240\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (0, 23.2) and (45, 29.2)<BR>\n" );
document.write( "point slope formula y-y1=m(x-x1), m slope and (x1, y1) point<BR>\n" );
document.write( "slope is 6/45.<BR>\n" );
document.write( "A-23.2=(6/45)(x-0)<BR>\n" );
document.write( "A=(2/15)x+23.2<BR>\n" );
document.write( "2008: x=38<BR>\n" );
document.write( "(2/15)x=76/15 or 5.07, so age would be 28.27 or 28.3 years<BR>\n" );
document.write( "2019 is 29.2-(2/15)=29.07 or 29.1 years </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );