document.write( "Question 351132: There is 486 feet of fencing available to enclose a rectangular pasture alongside a river, which serves as one side of the rectangle (so only three sides require fencing. Express the area of the rectangular pasture as a function of x. \n" ); document.write( "

Algebra.Com's Answer #250984 by nerdybill(7384) $\"\"$ $\"About$

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There is 486 feet of fencing available to enclose a rectangular pasture alongside a river, which serves as one side of the rectangle (so only three sides require fencing. Express the area of the rectangular pasture as a function of x.
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\n" ); document.write( "Draw a diagram of the problem. It will help you see the solution.
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\n" ); document.write( "Let x = width
\n" ); document.write( "then
\n" ); document.write( "486-2x = length
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\n" ); document.write( "area = width * length\r
\n" ); document.write( "\n" ); document.write( "area = x(486-2x)\r
\n" ); document.write( "\n" ); document.write( "area = 486x-2x^2 \r
\n" ); document.write( "\n" ); document.write( "or
\n" ); document.write( "area = $\"486x-2x%5E2\"$ (this is what they're looking for) \n" ); document.write( "

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