Consider the function f(x) = 8(x - 2)^2/3. For this function there are two important intervals: (-∞, A) and (A, ∞) where A is a

Question

Consider the function f(x) = 8(x - 2)^2/3. For this function there are two important intervals: (-∞, A)
and (A, ∞) where A is a critical number.
A is
For each of the following intervals, tell whether f(x) is increasing or decreasing.
(-∞, A): 
(A, ∞):
For each of the following intervals, tell whether f(x) is concave up or concave down.
(-∞, A):
(A, ∞):

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