5. A farmer has 240 meters of fence. The farmer wants to build a
rectangular fence that encloses the greatest possible land area.
a. Write an equation for the fenced area A in terms of the length of
the rectangular plot.
b. What are the dimensions of the rectangle with the greatest area?
c. Describe how you could find the information in part (b) from a
graph of the equation.
d. Does the equation for area represent a linear, quadratic, or
exponential function, or none of these? Explain.