Question: Suppose a rectangular pen for a pet is to be made using 40 feet of fence. Let / represent its length and w its width,

Suppose a rectangular pen for a pet is to be made using 40 feet of fence. Let / represent its length and w its width, with l ≥ w. 

(a) Find / and w if the area is 91 square feet. 

(b) Write a formula for the area A in terms of w. 

(c) What is the maximum area possible for the pen? Interpret this result.

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a b c The perimeter is 40 thus 212w401w20120w Since the ... View full answer

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