document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1173656>Question 1173656</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A national census is mandated by the Constitution of Pakistan to be held every ten years. After the independence of Pakistan in 1947, the first census took place in 1951. Figure 1 reflects the increase in population of Pakistan during last four national census. The increase between 1972 and 2017 could be approximated by a linear function. If in 1972 the population was 65.309 million and as per the census data of 2017 the population was 207.774 million;\r<BR>\n" );
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document.write( "a)	Determine the estimation function P = f (t), where P equals the population of Pakistan and t equals time measured in years since 1972.<BR>\n" );
document.write( "b)	Interpret the slope and P intercept<BR>\n" );
document.write( "c)	According to this function, what will be the estimated population of Pakistan in 2027 census?\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #798946 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=798946\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> make them ordered pairs; years will be t, pop will be y.<BR>\n" );
document.write( "Let 1972=0<BR>\n" );
document.write( "so (0,  65.309) is one ordered pair<BR>\n" );
document.write( "and (45, 207.774) is other ordered pair<BR>\n" );
document.write( "the slope is 142.465/45 or 3.1659<BR>\n" );
document.write( "point slope formula for the equation y-y1=m(t-t1), m slope and (t1, y1) point<BR>\n" );
document.write( "y-65.309=3.1659t<BR>\n" );
document.write( "y=3.1659t+65.309 units millions of people<BR>\n" );
document.write( "the y-intercept is 65.309 millions<BR>\n" );
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document.write( "in 2027, x will be 55.  It will also be 10 years later with slope 3.1659, so there will be 31.659 million more people than 2017 or 239.433 million people.<BR>\n" );
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