28. Alcohol Concentration The following graph shows the ap- proximate concentration of alcohol in a person's bloodstream 1 hr after drinking 2 oz of alcohol. Estimate the total amount of alcohol in the bloodstream by estimating the area under the curve. Use rectangles with widths of 1 hr. Alcohol concentration/hour 3 1 1 2 3 4 Hours 5 6 7 8

Q: Find the average rate of change for the graph on the given interval.

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Q: How well does the average rate of change describe how the mold changes for these 6 days?

A: Formula used : Average rate of change of f (x) in between a and b is  f(b) - f(a) / b-a

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A: To find area of a shaded region we always draw a strips parallel to either x axis or y axis…

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A: First draw figure and bound area about x axis and use area formula