The cost data for Evencoat Paint for the year 2019 is as follows: Month January February March April May June July August September October November December Gallons of Paint Produced 110,000 68,000 71,000 77,000 95,000 101,000 125,000 95,000 95,000 89,000 128,000 122,000 Equipment Maintenance Expenses $70,700 66,800 67,000 68,100 69,200 70,300 70,400 68,900 69,500 68,600 72,800 71,450 Using the high-low method, express the company's cost formula as an equation where x represents the gallons of paint produced and y represents total costs.