Question: 2. Julia was given the following problem to solve: The cost, in dollars, of operating a machine per day is given by the formula C

2. Julia was given the following problem to solve: "The cost, in dollars, of operating a machine per day is given by the formula C =2/2 -84+1025, where t is the time, in hours, the machine operates. For many hours must the machine run to minimize the cost?" Julia decided to solve this problem by completing the square. Do you agree with her choice? Justify your answer. (2 marks)

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