document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=686928>Question 686928</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Which of the following is an inverse variation?<BR>\n" );
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document.write( "A:     <BR>\n" );
document.write( "Sally works 2 hours and earns 10 dollars, if she works 4 hours she earns 20 dollars<BR>\n" );
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document.write( "B:     <BR>\n" );
document.write( "A car travels 200 miles in 4 hours, it travels 100 miles in 2 hours.\r<BR>\n" );
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document.write( "C:     <BR>\n" );
document.write( "A biker traveling 8mph covers 8 miles in 1 hour, if he decreases his speed to 4mph it will take him 2 hours to cover the same distance\r<BR>\n" );
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document.write( "D:     <BR>\n" );
document.write( "A pond of 1 acre has 2000 fish, a pond of 3 acres has 6,000 fish\r<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 #424936 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20849)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=424936\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Inverse variation:  when one variable increases,the other variable decreases. \r<BR>\n" );
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document.write( "a biker traveling at <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8+mph ALIGN=MIDDLE  ALT=\"8+mph\"   DISABLED_style= \"max-width:90%; height:auto;\" > can cover <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=8+miles ALIGN=MIDDLE  ALT=\"8+miles\"   DISABLED_style= \"max-width:90%; height:auto;\" > in <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1hour ALIGN=MIDDLE  ALT=\"1hour\"   DISABLED_style= \"max-width:90%; height:auto;\" >.  If the biker's speed decreases to <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4+mph ALIGN=MIDDLE  ALT=\"4+mph\"   DISABLED_style= \"max-width:90%; height:auto;\" >, it will take the biker <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=2hours ALIGN=MIDDLE  ALT=\"2hours\"   DISABLED_style= \"max-width:90%; height:auto;\" > (an increase of one hour), to cover the same distance.  \r<BR>\n" );
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document.write( "the graph of inverse variation shows if the value of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=hours ALIGN=MIDDLE  ALT=\"x=hours\"   DISABLED_style= \"max-width:90%; height:auto;\" > is increased, then <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=mph ALIGN=MIDDLE  ALT=\"y=mph\"   DISABLED_style= \"max-width:90%; height:auto;\" > decreases.    <BR>\n" );
document.write( "If <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x=hours ALIGN=MIDDLE  ALT=\"x=hours\"   DISABLED_style= \"max-width:90%; height:auto;\" > decreases, the <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=mph ALIGN=MIDDLE  ALT=\"y=mph\"   DISABLED_style= \"max-width:90%; height:auto;\" > value increases.  We say that <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y ALIGN=MIDDLE  ALT=\"y\"   DISABLED_style= \"max-width:90%; height:auto;\" > varies inversely as the value of <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x ALIGN=MIDDLE  ALT=\"x\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "so, your answer is <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=C ALIGN=MIDDLE  ALT=\"C\"   DISABLED_style= \"max-width:90%; height:auto;\" >  </SPAN>\n" );
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