SOMEONE PLEASE HELP! 20 POINTS! And BRAINLEST

Suppose that the cost of producing x" tablets is defined by c(x) = 200 + 10x +0.2x, where "x" represents the
number of tablets produced. The graph below represents the function.

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]

Part D: Compare the average rate of change over the interval [a, b] with the average rate of change
over the interval [b, c]. What does this represent in real life?