document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1003913>Question 1003913</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Four years after a hedge maple tree was planted, its height was 9 feet. Eight years after it was planted, the hedge tree height was 12 feet. What is the growth rate of the hedge maple? what was its height when it was planted?\r<BR>\n" );
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document.write( "Please show work.\r<BR>\n" );
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document.write( "Thanks for your help </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #620518 by </B><A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><B>josgarithmetic(39617)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josgarithmetic><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=620518\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Points (t,h) for years, height.<BR>\n" );
document.write( "Points are (4,9) and (8,12).\r<BR>\n" );
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document.write( "Try staying in slope-intercept form, <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=mt%2Bb ALIGN=MIDDLE  ALT=\"h=mt%2Bb\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=m=%2812-9%29%2F%288-4%29 ALIGN=MIDDLE  ALT=\"m=%2812-9%29%2F%288-4%29\"   DISABLED_style= \"max-width:90%; height:auto;\" > and <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b=h-mt ALIGN=MIDDLE  ALT=\"b=h-mt\"   DISABLED_style= \"max-width:90%; height:auto;\" >.\r<BR>\n" );
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document.write( "Substitute either point, and once simplified in slope-intercept form for the described example, you have your vertical axis intercept, b. </SPAN>\n" );
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