Question: A rectangular dog pen is constructed using a barn wall as one side and 120m of fencing for the other three sides. a) give a

A rectangular dog pen is constructed using a barn wall as one side and 120m of fencing for the other three sides. a) give a sketch of the situation. b) express the area in terms of x. c) sketch the graph. d) find the value of x that gives the greatest area. e) find the dimensions of the pen. f) state the domain.

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