Q9 2.75 Points Each of the charts below shows a relationship between costs or revenues (on the vertical axis) and production volume (on the horizontal axis). This relationship is known as cost behavior. Indicate which chart best fits the costs or situations described below and provide a short explanation. Note that some charts may be used more than once and others never. Sometimes two charts may fit one item, sometimes no chart may be appropriate. 7 8 12 12 11