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The conversion of square feet to square yards can be represented by direct variation. Three square yards are equivalent to 27 square feet. Let y represent the number of square yards and x the number of square feet. Then y varies directly with x.



What is the constant of variation?

1/9 , 1/3 , 3 , 9



What is the equation representing the direct variation?

y=(1,9)x y=(1/3)x y=3x y=9x