Graphs of the position functions of two particles are shown, where t is measured in seconds. (a) W 0 When is the particle in fiqure (a) speeding up? (Enter your answer using interval notation.) When is the particle in figure (a) slowing down? (Enter your answer using interval notation.) (5) When is the particle in figure (b) concding up? (Enter your answer using interval notation.) When is the particle in figure (b) slowing down; center veuran van u cvcoration.

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