Below are the processing costs of Darnell Products observed over the last 10 months: Month 1 2 3 4 5 6 7 8 Units Produced 7,500 11,000 13,500 5,500 9,000 8,500 4,500 7,000 11,500 6,000 Processing Cost $44,000 60,000 56,000 20,000 47,000 52,000 24,500 41,000 52,000 41,000 10 3. Use the high low method to determine the variable cost per unit and fixed cost per month. Express your results in the form of a linear equation ya bx. (6 marks)