document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=80081>Question 80081</A>: <I><SPAN STYLE=\"word-break: break-all;\">  In the equation: <BR>\n" );
document.write( "y=2/x <BR>\n" );
document.write( "x and y vary directly.  <BR>\n" );
document.write( "   True <BR>\n" );
document.write( "  False <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #57440 by </B><A HREF=/tutors/aboutme.mpl?userid=bucky><B>bucky(2189)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=bucky><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=57440\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> False<BR>\n" );
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document.write( "If x and y vary directly, then as one of them increases, the other must increase also.<BR>\n" );
document.write( "(or as one of them decreases, the other must decrease also).<BR>\n" );
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document.write( "This means that x cannot be in the denominator unless y is also in a denominator.<BR>\n" );
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document.write( "Think about this.  Let's say that x = 1. Then the given equation becomes:<BR>\n" );
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document.write( "y = 2/x = 2/1 = 2<BR>\n" );
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document.write( "Now let's increase x by saying that x is going to be 2.  If y varied directly as x then<BR>\n" );
document.write( "because we increased x, y should also increase.  But when we substitute 2 for x, the <BR>\n" );
document.write( "equation becomes:<BR>\n" );
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document.write( "y = 2/x = 2/2 = 1<BR>\n" );
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document.write( "Notice that when x went from 1 to 2, the value of y went down from 2 to 1.  So y does not<BR>\n" );
document.write( "vary directly as x. It varies inversely ... the bigger x gets the smaller y gets.<BR>\n" );
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document.write( "Hope this helps you to understand the problem a little better. And sometimes it helps<BR>\n" );
document.write( "just to plug numbers in and see what happens to one of the variables if you increase<BR>\n" );
document.write( "(or decrease) the other one ... just as we did above. </SPAN>\n" );
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