A patient is given a 500 mg dose of a medication. The amount of medication remaining in the patient's bloodstream, in milligrams, hours after the injection, is modeled by the function . Which of the following is the best interpretation of the -intercept of the graph of in the -plane?
The medication is eliminated from the bloodstream at a rate of 80% per hour.
After 1 hour, 500 mg of medication remains in the bloodstream.
The initial amount of medication in the bloodstream was 500 mg.
The medication will be completely eliminated from the bloodstream after 500 hours.
