A wind farm selling electricity at a price of x cents per kilowatt hour (c/kWh) has found that its profit P (#1,000/yr.) depends according to the P(x) = -x²³² + 10x - 2 on the price x equation. (a) Find the wind farm's profit per year when the price is 2 c/KWh, and also when the price is 56/kwh. (1) Find the average rate of change of profit if the price is changed from 2 c/kwh to 56/kwh and give an interpretation. @ Find the instantaneous rate of change of profit at a price of 26/kwh. J

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