Consider the following curve (image attached). a) Find the interval(s) on which f is increasing. (Enter your answer using interval notation.) b) Find the interval(s) on which f is decreasing. (Enter your answer using interval notation.) c)Find the interval(s) on which f is concave up. (Enter your answer using interval notation.) d) Find the interval(s) on which f is concave down. (Enter your answer using interval notation.)

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