document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=401989>Question 401989</A>: <I><SPAN STYLE=\"word-break: break-all;\"> tell whether each equation represents direct or inverse variation:\r<BR>\n" );
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document.write( "y=80x<BR>\n" );
document.write( "xy=80<BR>\n" );
document.write( "y=80/x<BR>\n" );
document.write( "y/x=80 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #284443 by </B><A HREF=/tutors/aboutme.mpl?userid=richard1234><B>richard1234(7193)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richard1234><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=richard1234><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=284443\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The first and fourth equations are equivalent, and they represent direct variation because when x increases, y also increases by the same ratio. The second and third equations are equivalent and they represent inverse variation because when x increases, y decreases (and vice versa). </SPAN>\n" );
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