MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Consider the following. (If an answer does not exist, enter DNE.) f(x) = 2x - 21x + 72x - 7 (a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.) |(-00,3).((4,00)) (b) Find the interval(s) on which f is decreasing. (Enter your answer using interval notation.) (3,4) (c) Find the local minimum and maximum value of f. (4,73) local minimum value

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