MY NOTES ASK YOUR TEACHER Consider the equation below. (If an answer does not exist, enter DNE.) f(x) = x4 - 8x² + 5 (a) Find the interval on which f is increasing. (Enter your answer using interval no (-2,0) X Find the interval on which fis decreasing. (Enter your answer using interval notat (-∞, -2) (b) Find the local minimum and maximum values of f. local minimum value -11 local maximum value 5 (c) Find the inflection points. 2√3 3 (x, y) = ( (x, y) = ( X - -∞, - 2 - PRACTICE ANOTHER 2√3 35 3 9 35 9 X (smaller x-value) (larger x-value) Find the interval on which fis concave up. (Enter your answer using interval notati 2 √3

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