Consider the following graph. y 5 -4 3 2 1 1 2 3 4 5 6 X (a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.) 0,1 U 3,4 U 5,7 (b) Find the interval(s) on which f is decreasing. (Enter your answer using interval notation.) 1,3 (c) Find the interval(s) on which f is concave upward. (Enter your answer using interval notation.) 1.4 U 5,7 X (d) Find the interval(s) on which fis concave downward. (Enter your answer using interval notation.) 0.3 U 4,5

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