A Quadratic Trend Equation Y_t = 900 + 30t -

question 87

Multiple Choice

A quadratic trend equation y_t = 900 + 30t - 2.5t² was fitted to a company's sales. This result implies that the sales trend:

• A)hit a maximum in period t = 30.
• B)hit a maximum in period t = 6.
• C)hit a minimum in period t = 5.
• D)hit a minimum in period t = 6.

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