document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=791834>Question 791834</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Prompt: In 1950, a city was first established containing 32,000 people. In the year 2000, the size of the city was 149,000 people. <BR>\n" );
document.write( "Question A: determine the rate of change in the population.\r<BR>\n" );
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document.write( "Question B: Predict the size of the city in the year 2010.\r<BR>\n" );
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document.write( "My issue is that I don't understand how to do this problem. I thought it was 'y' over 'x' and this is what I got so far: 32000 divided by 1950 and 149000 divided by 2000 but I don't think is the right way to solve the issue. Please help me. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #479742 by </B><A HREF=/tutors/aboutme.mpl?userid=wilft1><B>wilft1(217)</B></A><img src=\"/images/stars/stars-09.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=wilft1><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=wilft1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=479742\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> lets put population on the y axis and year on the x axis... and find the slope which is m\r<BR>\n" );
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document.write( ".......y2 - y1<BR>\n" );
document.write( "m =--------<BR>\n" );
document.write( ".......x2 - x1\r<BR>\n" );
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document.write( "these are our two points<BR>\n" );
document.write( "(1950,32000) and <BR>\n" );
document.write( "(2000,149000)<BR>\n" );
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document.write( "  149,000 - 32,000<BR>\n" );
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document.write( "  2000 - 1950<BR>\n" );
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document.write( "equals<BR>\n" );
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document.write( "  117,000<BR>\n" );
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document.write( "   50<BR>\n" );
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document.write( "reduce to lowest terms...<BR>\n" );
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document.write( "2340<BR>\n" );
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document.write( " 1<BR>\n" );
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document.write( "so for every year, the population increases by 2340 people.  to estimate the population for the year 2010, multiply 2340 by 10 = 23,400, add that to 149,000 to get an estimated population of 172,400 in the year 2010 </SPAN>\n" );
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