Solve.Drug Testing The concentration of a drug (in parts per million) in a patient’s blood...

Solve.

Drug Testing The concentration of a drug (in parts per million) in a patient’s bloodstream t hours after administration of the drug is given by the function

                     P(t) = −t4 + 12t3 − 58t2 + 132t.

a. Use the formula to determine when the drug will be totally eliminated from the bloodstream.

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b. Use the graph to estimate the maximum concentration of the drug.

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c. Use the graph to estimate the thne at which the maximum concentration occurs.

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d. Use the graph to estimate the amount of time for which the concentration is above 80 ppm.