Answer: 6520 + 3x
Explanation:
Firstly, we need to calculate the variable cost per hour which will be:
= (Highest activity cost – Lowest activity cost)/(Highest activity hour – Lowest activity hour)
= (9460 - 7300)/(980 - 260)
= 2160 / 720
= 3
We'll also find the fixed cost which will be:
= Fixed cost = Highest activity cost – (Variable cost per hour x Highest activity hour)
= 9460 - ( 3 x 980)
= 9460 - 2940
= 6520
Therefore, the cost function will be:
= 6520 + 3x