Ivanna has 240 meters of fencing and wishes to form three sides of a rectangular field. The fourth side borders a river and will not need fencing. As shown below, one of the sides has length x (in meters). Side along river (a) Find a function that gives the area A (x) of the field (in square meters) in terms of x. 4 (x) = x (240 – 2:) (b) What side length x gives the maximum area that the field can have? Side length x : I| meters (c) What is the maximum area that the field can have? Maximum area:|| square meters

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A:

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