9. What is the cost function of the costs of operation? 10. Assuming 150 kilos of material usage is expected to occur next month, how much will be the estimated operations cost based on the cost function generated from high-low method? 11. Using the least squares method, the average rate of variability per kilo of materials used is 12. Using the least square method, the fixed portion of the cost is 13. Assuming 98 kilos of material usage is expected to occur next month, how much will be the estimated operations cost based on the cost function generated from least square method? Johnson Corporation is preparing a flexible budget and desires to separate its electricity expense which is semi-variable and fluctuates with total machine hours, into its fixed and variable components. Information for the first three months of 2013 is as follows: Machine hours Electricity Expense January 1,520. P36,375 February 1,250 P38,000 March 1,750 P41,750 April 1,600 P42,360 May 2,350 P55,080 Requirements: Using the least square method, 14. Compute the variable rate per machine hour 15. Compute the fixed portion of Johnson's electricity expense 16. Provide the cost function of the electricity cost 17. Compute the total electricity cost if actual machine hours is 3,300 for the next month As part of a cost study, the cost accountant of Shinly Corporation has recorded the cost of operations at seven different levels of materials usage. The records show the following: Kilos of materials 80 60 20 120 140 Costs of operation P800 P480 P320 P1, 200 P1, 280 P480 || 40 100 P1,040 18. Using the least squares method, the average rate of variability per kilo of materials used is 19. Using the least square method, the fixed portion of the cost is 20. Assuming 98 kilos of material usage is expected to occur next month, how much will be the estimated operations cost based on the cost function generated from least square method