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Modeling the amount of a Drug in the Bloodstream The goal of the following investigation will be to determine the amount of a drug which is present in the human bloodstream for different durations of specified time. Foremost, appropriate variable must be established to deal with the investigation. Let "t" represent the time in hours, and let "a" represent the amount of drug in micrograms (µg). The controlled variable will be the time, because we can establish at what hour the monitoring will start and stop. The uncontrolled variable thus is the amount of drug in the bloodstream; we have no control over that and it is ultimately what we hope to discover. Foremost, a data table is created according to the information provided in the "Amount of Drug in the Blood Stream" graph. This is done by taking all the t values and a values and organizing them into a data...

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