A particle is moving with velocity v(t) = t2-9t + 18 with distance, s measured in meters, left or right of zero, and t measured in seconds, with t between 0 and 8 seconds inclusive. The position at time t = 0 sec is 1 meter right of zero, that is, s(0) = 1. 4. The time interval(s) when the particle is a. going faster b. slowing down

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