SOLUTION: 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 t

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.
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
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.
.
Draw a diagram of the problem. It will help you see the solution.
.
Let x = width
then
486-2x = length
.
area = width * length
area = x(486-2x)
area = 486x-2x^2
or
area = (this is what they're looking for)
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