Use the high-low method to determine the variable and fixed cost components of Swift Lube's operating costs. Use this information to project the monthly operating costs for a month in which the company performs 3,900 oil changes. (Click the icon to view the data.) Data table Use the high-low method to determine the variable and fixed costs components of Swift Lube's operating cost equation. First identify the formula and calculate the variable cost component (slope). (Round your answer to the nearest cent.) Next identify the formula and compute the fixed cost component (the vertical intercept) using the costs for the highest level of activity. (Round your answers to the nearest whole number.) Complete Swift Lube's operating cost equation. (Enter the variable cost to the nearest cent and the fixed cost to the nearest whole dollar.) y=x+ Complete Swift Lube's operating cost equation. (Enter the variable cost to the nearest cent and the fixed cost to the nearest whole dgllar.) y=x+ Use your answer from above to predict total monthly operating costs if Swift Lube performs 3,900 oil changes. (Round your answer to the nearest whole dollar.) The total monthly operating costs if Swift Lube performs 3,900 oil changes is