The function models the concentration of a drug in blood after two-hour intervals, where counts 2-hour periods. Which of the following does the model predict?
For every increase in time by 1 hour, the concentration decreases by 20%.
For every increase in time by 2 hours, the concentration decreases by 20%.
For every increase in time by 2 hours, the concentration decreases by 80%.
For every increase in time by 1 hour, the concentration decreases by 10%.
