document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=509227>Question 509227</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need to understand how to work the following problem in a section of my college algebra book called coordinate geometry and graphing techniques:\r<BR>\n" );
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document.write( "Find x if the line through (-2,4) and (x,7) has a slope of 2/9.\r<BR>\n" );
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document.write( "Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #341340 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=341340\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Find x if the line through (-2,4) and (x,7) has a slope of 2/9.<BR>\n" );
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document.write( "Slope, m, is the diffy/diffx = 2/9<BR>\n" );
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document.write( "2/9 = (4-7)/(-2-x) = 3/(2+x)<BR>\n" );
document.write( "2(2+x) = 3*9<BR>\n" );
document.write( "4+2x = 27<BR>\n" );
document.write( "x = 23/2<BR>\n" );
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