High-low method; flexible budget Tijuana Tile has gathered the following information on its utility cost for the past six months. Machine Hours Utility Cost 1,300 $1,128 1,700 1,290 1,250 1,080 1,800 1,358 1,900 1,500 1,392 1,188 a. Using the high-low method, determine the cost formula for utility cost. y= $ 0 + $0 per MH b. Prepare a flexible budget with separate variable and fixed categories for utility cost at 1,325, 1,500, and 1,675 machine hours. 1,325 1,500 1,675 Variable utility cost $ 0 $ 0 $ 0 Fixed utility cost Expected total utility cost $ 0 0 0 0 $ 0 $ 0