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You can put this solution on YOUR website!
m/n = 4 looks like it is direct.
\n" ); document.write( "multiply both sides by n and you get:
\n" ); document.write( "m = 4n
\n" ); document.write( "the 4 could represent k in the formula m = kn which is a direct variation formula.
\n" ); document.write( "if it was direct, then an increase in m would correleate to an increase in n.
\n" ); document.write( "let's see if that's true.
\n" ); document.write( "allow m = 1
\n" ); document.write( "you get 1/n = 4 and you solve for n to get n = 1/4
\n" ); document.write( "your ratio becomes 1/(1/4) = 4 which is true.
\n" ); document.write( "now allow m = 2
\n" ); document.write( "you get 2/n = 4 and you solve for n to get n = 2/4
\n" ); document.write( "your ratio becomes 2/(2/4) = 4 which is also true.
\n" ); document.write( "as m increased, n increases, so the variation is direct.
\n" ); document.write( "allow m to be 100.
\n" ); document.write( "the formua says that 100/n = 4
\n" ); document.write( "multiply both sides by n to get 100 = 4n
\n" ); document.write( "divide both sides by 4 to get n = 25
\n" ); document.write( "your ratio is 100/25 = 4 which is true
\n" ); document.write( "as m increased, n increased.
\n" ); document.write( "direct variation again.
\n" ); document.write( "direct is m = kn which leads to m/n = k
\n" ); document.write( "inverse is m = k/n which leads to mn = k
\n" ); document.write( "joint is m = kn/p which leads to k = mp/n
\n" ); document.write( "i'd go for direct.
\n" ); document.write( "combined appears to be a combination of any of the above.
\n" ); document.write( "here's one answer from the web:
\n" ); document.write( "http://answers.yahoo.com/question/index?qid=20070726203353AAgDenC\r
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