Answer:
Cost function = 1080 + 0.98x
Where x is the number of units
Step-by-step explanation:
Using the high low method we calculate the variable element in a mixed cost.
The variable cost per unit can be calculated as,
Variable cost per unit = (Highest activity cost - Lowest activity cost) / (Highest activity units - Lowest activity units)
The highest activity is in April with 9000 units and a cost of $9900 and the lowest activity is in February with 4000 units and a a cost of $5000.
Variable cost per unit = (9900 - 5000) / (9000 - 4000)
Variable cost per unit = $0.98 per unit
So, total fixed cost is = 9900 - (0.98 * 9000) = $1080
Cost function = 1080 + 0.98x
Where x is the number of units