Question 10: The graph below shows a company’s profits f(x)in dollars, depending on the price of pens x, in dollars, sold by the company. Part C (3 pts): What is an approximate average rate of change (AROC) of the graph from x=3 to x=6? Show your work. Part D (3 pts): Describe the constraints of the domain. The domain of this graph given the situation is _blank 1_ because _blank 2_ beyond those points.