Write a Linear Cost Function Equation for Each of the Following

Essay

Write a linear cost function equation for each of the following conditions. Use y for estimated costs and X for activity of the cost driver.
a. Direct materials cost is $.75 per pound.
b. Direct labour cost is $16.75 per hour.
c. Auto rental has a fixed fee of $75.00 per day plus $.50 per mile driven.
d. Machine operating costs include $350 of maintenance per month, and $5.00 of coolant usage costs for each day the machinery is in operation.