Question

Marilee is creating a garden in her yard. She needs to put up a fence to keep the animals out of it. She has 40 yards of fencing she can erect. This situation is modeled using the equation A = -w²+ 20w, where A is the area of the fence and w is the width of the fence. Using the equation, what is domain when the maximum range is achieved?
• 10 yards
• 5 yards
• 10 square yards
• 100 yards