Utilize the Diana Company's information to determine the cost function: Observations of Total Operating Costs-with-Hours for July through November are: July $24,900 with 5,250 hours; August $24,000 with 5,500 hours; September $36,400 with 7,500 hours; October $44,160 with 9,750 hours; November $45,000 with 9,500 hours. What is the cost function? O y = $43,191 + $0.19x O y = $4,875 + $4.28X O y = $41,900 + $0.23X O y = $2,430 + $4.28X