document.write( "Question 437262: If y varies directly as x, find the direct variation equation for the situation. y = 27 when x = 21\r
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Algebra.Com's Answer #302453 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi
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document.write( "*Note: When Quantities vary Directly,they are related by the relationship:
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document.write( "  k being  the constant of proportionality.
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document.write( "  y = 27 when x = 21 
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document.write( "  27 = k*21
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document.write( "  27/21 = k
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document.write( " y = (9/7)x \n" );
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