Suppose you have 56 feet of fencing to enclose a rectangular dog pen. The function A= 28x-x?, where x = width, gives you the area of the dog pen in square feet. What
width gives you the maximum area? What is the maximum area? Round to the nearest
tenth as necessary.
A width = 28 ft; area = 196 ft2
B width = 28 ft; area = 420 ft?
Cwidth = 14 ft; area = 588 ft?
D width = 14 ft; area = 196 ft?
А
O a
Ob
B
C с
Od
D