The McGraw Company is accumulating data to be used in preparing its annual profit plan for the coming year. The cost behavior pattern of the maintenance costs must be determined. The accounting staff has suggested that linear regression be employed to derive an equation in the form of y=a+bx for maintenance costs. Data regarding the maintenance hours and costs for last year and the results of the reqression analysis are as follows: (CMA adapted) What is the variable cost per hour using the high-low method to estimate the cost equation? What is the variable cost per hour using the high-low method to estimate the cost equation? Multiple Choice $9.00. \$0.1111. $0.1333. $7.50