Consider the function f(x) = 7(x - 5)²/³. For this function there are two important intervals: (-∞, A) and (A, ∞) where A is a critical number. Find A For each of the following intervals, tell whether f(x) is increasing (type in INC) or decreasing (type in DEC). (-∞, A): (A, ∞): For each of the following intervals, tell whether f(x) is concave up (type in CU) or concave down (type in CD). (-∞, A): (A, ∞0):

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