If f(x) = 4x – 5x + 7, find the difference quotient of f, f(x + h) – f(x) - which is given by . Completely simplify h the solution. f(x + h) – f(x) || h Use the difference quotient to find the average rate of change of the function f(x) over the interval 2 < x < 7. Average rate of change:

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