Select the correct answer from each drop-down menu. Samson is making a shipping box out of a 2-foot by 4-foot piece of cardboard. He will cut two squares of side length x and two rectangles with a width of x out of the cardboard and then fold the cardboard along the lines to make the box. He models the volume, , in cubic feet, as a function of the length x, in feet. He created the diagram and graph to model the box and its volume. Image not drawn to scale The zeros of function v occur at 0 and 1 . To make the box, Samson should use a value for x.