The figure below shows a monthly cost curve for the production of Good X. C (thousands of $) Monthly Cost of Production of Good X ONWALA NODES WE B A 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 14.5 Monthly Number of Units of Good X Produced (thousands) a. Calculate the slope of this non-linear function at points A, B, and C. b. Is the marginal response of the cost of production of Good X to the change in the quantity produced of Good X increasing or decreasing? c. Is the slope of this function increasing or decreas ing as the volume of production increases