A teacher hands out the following graph to four students who are asked to describe a real world situation that could be modeled by the graph. We may assume the graph runs from (0,10) to (9,0) and the graph is a curve and not a straight line. The description below that LEAST fits what is modeled by the graph is: time in hours elapsed is on the x axis and temperature in degrees above room temperature is the y axis and the graph measures something cooling down over time.