document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1117843>Question 1117843</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi all, please help me to solve this - I have the answer, but I cannot \"back engineer\" how we arrived at it.  Thank you!\r<BR>\n" );
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document.write( "The gradient of the line joining (4, q) to (6, 5) is twice the gradient of the line joining (0, 0) to (4, q).  Find q. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #732995 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=732995\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The gradient of the line joining (4, q) to (6, 5) is twice the gradient of the line joining (0, 0) to (4, q). Find q. <BR>\n" );
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document.write( "Equation:<BR>\n" );
document.write( "(q-5)/(4-6) = 2[(q-0)/(4-0)]<BR>\n" );
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document.write( "(q-5)/(-2) = 2[q/4]<BR>\n" );
document.write( "q-5 = -4(q/4)<BR>\n" );
document.write( "4q-20 = -4q<BR>\n" );
document.write( "8q = 20<BR>\n" );
document.write( "q = 2.5<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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