Consider the function f(x) = x² + 7x + 13 x + 4 (a) Find the domain and intercepts of f. (b) Find f'(x). (c) Find the coordinates of any stationary points of f. Construct a table of signs for f'(x), determine the intervals on which ƒ is increasing and those on which f is decreasing, and determine the nature(s) of the stationary point(s).

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