er the function f(x) = 2x° + 21 36x + 4. For this function there - - ree important open intervals: ( – 0x, A), (A, B), and (B, ∞) where A and the critical numbers. ch of the following open intervals, determine whether f(x) is increasing or asing. p, A): Select an answer ): Select an answer v p): Select an answer ♥ the First Derivative Test, we can conclude: = A, ƒ(x) has a Select an answer = B, f(x) has a Select an answer >

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