For the linear model, do the following. The profit is f(x) = 3x - 2.5 thousand dollars when x hundred units are sold. (a) Give the slope of the line defined by the equation (b) Write the rate of change of the function in a sentence of interpretation. ---Select Units- The profit is-Select by (c) Evaluate f(0). f(0) (d) Give a sentence of interpretation for f(0). --Select Units- When units are sold the profit is

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