You manage Gofer Delivery Services. You rent a truck for $50 a day and each delivery takes an hour of labor time. The hourly wage is $8.
Draw a curve showing the relationship between the number of deliveries on the horizontal axis and the total cost on the vertical axis. Draw the curve for between 0 and 20 deliveries. The slope of the curve is to draw the curve what variables are held fix? a change in what would cause a movement upward along the curve? changes in what would cause the entire curve to move upward?