A graphing calculator is recommended In this problem you are asked to find a function that models a real life situation and then use the model to answer questions about the situation Use the guidelines on page 217 to hell A rancher with 700 ft of fencing wants to enclose a rectangular area and then divide it into four pens with fencing parallel to one side of the rectangle see the figure a Find a function A that models the total area of the four pens Use w to represent the width of the field A W x b Find the largest possible total area of the four pens Xtt Wholes