Person "S" is biking along a straight path; which they start in the northbound direction. A graph that shows persons "S" position s (in kilometres) with time t (in hours) a) what is the average velocity in time from t=1 to t-4 for person "S" b) what is person "S" velocity at t=7.5 and in what direction will person "S" be moving? c) by looking at the graph; determine if the speed of person "S" is slowing down at t=6.1/ Explain why.

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