1. Suppose that the cost of producing x tablets is defined byC(x) - 200 + 10x + 0.2x, where x represents the number onproduced. The graph below represents the function.presents the number of tabletsb (25,575)(20,480)(15,395)Part A: Complete the boxes to label the graph.Part B: Find the average rate of change over the interval [a,b].Part C: Find the average rate of change over the interval [b,c).

Answer:we are givenpart-A:Since, x is number of tabletsC(x) is cost of producing x tabletsso, vertical box is C(x)so, we write in vertical box is "cost of producing x tablets"Horizontal box is xso, we write in horizontal box is "number of tablets"part-B:we have to find average on [a,b]we can use formulawe are given point asa: (15 , 395)a=15 and C(15)=395b: (20, 480)b=20 , C(20)=480now, we can plug values...........Answerpart-c:we have to find average on [b,c]we can use formulawe are given point asb: (20, 480)b=20 , C(20)=480c:(25,575)c=25 , C(c)=575now, we can plug values