Suppose that you need to build a rectangular enclosure from 500 feet of fence. Let the dimensions of the fence be calledl (for length) and w (for width). Also, supoose that you always use all 500 feet of available fence. If the width of the enclosure is w feet, what is its length in terms of w? l(w) %3D feet What is the area of the enclosure in terms of w? A(w) = %3D square feet What value of w will give the greatest area? w = feet What is the maximum rectangular area that can be enclosed by 500 feet of fence? square feet

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Polynomials

Try substituting 1. You will get 6 and not 0. Try other real values also. What About -2? Let us check.