document.write( "Question 329214: A brief explanation for the meaning -y is directly propotional to x (give an example) \n" ); document.write( "
Algebra.Com's Answer #236023 by nyc_function(2741)\"\" \"About 
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When two variable quantities have a constant (unchanged) ratio,
\n" ); document.write( "their relationship is called a direct variation.
\n" ); document.write( "It is said that one variable \"varies directly\" as the other. \r
\n" ); document.write( "\n" ); document.write( "The constant ratio is called the constant of variation.\r
\n" ); document.write( "\n" ); document.write( "The formula for direct variation is y = kx,
\n" ); document.write( " where k is the constant of variation.
\n" ); document.write( "\"y varies directly as x\"\r
\n" ); document.write( "\n" ); document.write( "In a direct variation, the two variables
\n" ); document.write( "change in the same sense. If one increases, so does the other.\r
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\n" ); document.write( "\n" ); document.write( "Example:
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\n" ); document.write( "The weekly salary Rita earns, R, varies directly as the number of hours, h, which she works. Express this relation as a formula.\r
\n" ); document.write( "\n" ); document.write( "R = hk\r
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