document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=929940>Question 929940</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The population of a city increases by 4,000 people each year. In 2025 the population is projected to be 450,000 people,. What is the equation that gives the city's population p ( in thousands of people) x years after 2010? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #564585 by </B><A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><B>TimothyLamb(4379)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=TimothyLamb><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=TimothyLamb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=564585\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> population equation (in thousands of people), starting in 2025:<BR>\n" );
document.write( "p = 4x + 450<BR>\n" );
document.write( "to use this equation, x = (year - 2025)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "find population (in thousands of people), in 2010:<BR>\n" );
document.write( "p(2010) = 4*(2010 - 2025) + 450<BR>\n" );
document.write( "p(2010) = 4*(-15) + 450<BR>\n" );
document.write( "p(2010) = 390<BR>\n" );
document.write( "---<BR>\n" );
document.write( "answer:<BR>\n" );
document.write( "---<BR>\n" );
document.write( "population equation (in thousands of people), starting in 2010:<BR>\n" );
document.write( "p = 4x + 390<BR>\n" );
document.write( "to use this equation, x = (year - 2010)<BR>\n" );
document.write( "---<BR>\n" );
document.write( "check the answer:<BR>\n" );
document.write( "by calculating the population (in thousands of people), in the year 2025:<BR>\n" );
document.write( "p = 4x + 390<BR>\n" );
document.write( "x = 2025<BR>\n" );
document.write( "p = 4*(2025 - 2010) + 390<BR>\n" );
document.write( "p = 4*(15) + 390<BR>\n" );
document.write( "p = 450<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve and graph linear equations:<BR>\n" );
document.write( "https://sooeet.com/math/linear-equation-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Solve quadratic equations, quadratic formula:<BR>\n" );
document.write( "https://sooeet.com/math/quadratic-formula-solver.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Convert fractions, decimals, and percents:<BR>\n" );
document.write( "https://sooeet.com/math/fraction-decimal-percent.php<BR>\n" );
document.write( "---<BR>\n" );
document.write( "Calculate and graph the linear regression of any data set:<BR>\n" );
document.write( "https://sooeet.com/math/linear-regression.php </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );