Figure 34-5 A graph shows Quantity of Sugar in millions of tons on the horizontal axis an Price in dollars per ton on the vertical axis. The horizontal axis ranges from 0 to 20 with an interval of 5 and the vertical axis ranges from 0 to 600 with an interval of 100. A straight, downward sloping line, labeled D sub US, is plotted with the following coordinates: ? (0, 600) ? (15, 300) ? (20, 200) A straight, upward sloping line, labeled S sub US, is plotted with the following coordinates: ? (0, 100) ? (5, 200) ? (10, 300). S sub US continues to the point where the value of quantity is 20. Six dashed lines are drawn on the graph as follows: ? A dashed vertical line from (5, 0) to (5, 200) on S sub US ? A dashed vertical line from (10, 0) to (10, 300) on S sub US ? A dashed vertical line from (15, 0) to (15, 300) on D sub US ? A dashed vertical line from (20, 0) to (20, 200) on D sub US ? A dashed horizontal line from (0, 300) to (15, 300) ? A dashed horizontal line from (0, 200) to (20, 200). This combination of axes, solid and dashed lines create the boundaries for 11 areas as follows: ? Area A is a four-side shape bounded by (0, 600), the intersection of D sub US and S sub US, (10, 300), and (0, 300) ? Area B is a triangle bounded by the intersection of D sub US and S sub US, (15, 300), and (10, 300) ? Area C is a four-sided shape bounded by (0, 300), (10, 300), (5, 200), and (0, 200) ? Area D is a triangle bounded by (10, 300)