The graph shows a quadratic function of the form P(t) = at2 + bt + c which represents the yearly profit for a company, where P(t) is the profit in year t. (a) Is the value of a positive, negative, or zero? Explain. (b) Write an expression in terms of a and b that represents the year t when the company made the least profit. (c) The company made the same yearly profits in 2004 and 2012. Estimate the year in which the company made the least profit.
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The graph shows a quadratic function of the form
which represents the yearly profit for a company, where
(b) Write an expression in terms of a and b that represents the year t when the company made the least profit.
(c) The company made the same yearly profits in 2004 and
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