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Rate of change problem involving velocity & acceleration

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Calculate the average rate of change over an interval in a graph between points $(x0,y0) = (\\var{x0},\\var{y0})$ and $(x1,y1)= (\\var{x1},\\var{y1})$

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Average rate = [[0]]

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If it takes {t2} hours to drive a distance of {km2} km on a motorway, what would be your average speed in km/h?

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Average speed = [[0]] km/h

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