D) After the drug reaches its maximum concentration, how many hours are required for the concentration to decrease to 16 mg/L Instructions: Read each question carefully. Answer in complete sentences.1. The graph below shows the concentration of a drug (in mg/L) in the bloodstream, t hours after it is taken orally. Usethe graph to answer a-f.AY80a. What is the concentration after 8 hours?7672b. Over what interval(s) does the concentrationincrease? Over what interval(s) does theconcentration decrease?68646056c. When is the drug at its maximum concentration?What is the maximum concentration of the drug?524844-40d. After the drug reaches its maximum concentration,how many hours are required for the concentration todecrease to 16 mg/L?363228e. What does the graph predict about theconcentration after 1 week? After 1 month?2420-1612f. Summarize the concentration of the drug in thebloodstream for the first 20 hours after it is taken. Usee findings from a-e to validate your statements.84-6.7.8 9 10 11 12 13 14 15 16 17 18 19 202. Suppose another drug is administered intravenously. The concentration c of the drug (in mg/L) in the20tbloodstream, t hours after it is administered, is modeled by the function c(t) =t2+4a. Determine when the concentration will be 0.5 mg/L.b. Complete the table representing the concentration of the drug in the bloodstream, t hours afteradministration. Round to two decimal places as needed.46.8101214161820c(t)Page 2 of 5

Given the graph of a concentration of a drug in bloodstream(in mg/L) versus tine time (in hours) To find the time taken for the concentration to reach 16mg/L after concentration reaches its maximum concentration. The maximum concentration occurs at the time when the graph has its peak value. From the graph, the maximum value is 64mg/L and occurs at t = 2 hours That is after 2 hours of intake, the drug has maximum concentration in bloodstream. And it reaches to 16mg/L at t = 10 That is after 10 hours of intake, the drug has concentration of 16mg/L in bloodstream. Now time taken for the concentration to reach 16mg/L after concentration reaches its maximum concentration = 10 - 2 = 8 hours