Question: A bug begins to crawl up a vertical wire at time t = 0. The velocity v of the bug at time t, 0t8, is

A bug begins to crawl up a vertical wire at time t = 0. The velocity v of the bug at time t, 0t8, is given by the function whose graph is shown above. At what value of t does the bug change direction? (A) 2 (B) 4 (C) 6 L O 11 11 7 (D) 7 (E) 8

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