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