document.write( "Question 155653: write an equation that expresses the relationship. Use k as the constant of variation.
\n" ); document.write( "d varies directly as the square of y\r
\n" ); document.write( "\n" ); document.write( "a) d= k sqrt y\r
\n" ); document.write( "\n" ); document.write( "b) d= k/sqrt y\r
\n" ); document.write( "\n" ); document.write( "c) d= ky^2\r
\n" ); document.write( "\n" ); document.write( "d) d= k/ y^2
\n" ); document.write( "

Algebra.Com's Answer #114679 by Alan3354(69443)\"\" \"About 
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write an equation that expresses the relationship. Use k as the constant of variation.
\n" ); document.write( "d varies directly as the square of y
\n" ); document.write( "a) d= k sqrt y
\n" ); document.write( "b) d= k/sqrt y
\n" ); document.write( "c) d= ky^2
\n" ); document.write( "d) d= k/ y^2
\n" ); document.write( "-----------
\n" ); document.write( "It's c) d = ky^2
\n" ); document.write( "That's the only one that is a function of y^2. d has y^2, but in the denominator it is y^(-2), so that's eliminated, or that would be called \"varies inversely as the square of y\"
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