document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=904785>Question 904785</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Determine whether y varies directly as x, if yes find the variation\r<BR>\n" );
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document.write( "y=-1.2x<BR>\n" );
document.write( "y-3x=1<BR>\n" );
document.write( "y+2=x<BR>\n" );
document.write( "y=-3.5x+7 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #548890 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=548890\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> y=-1.2x is a direct variation equation since it is in the form y = kx. In this case, k = -1.2 (the constant of variation)\r<BR>\n" );
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document.write( "The other equations are NOT in the form y = k*x and cannot be written into that form. So they are NOT direct variation equations. </SPAN>\n" );
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