Answer?

7. The graph shows the amount of a medicine m, in milligrams, remaining in a patient's body h hours after receiving an injection. The amount of the medicine decreases exponentially. A(0, 270) 250 200 m (mg of drug in body) 150 100 (1.5, 80) 50 0.5 1 1.5 2 2.5 h (hours since injection) a. By what factor did the medicine decrease in the first hour and a half? Explain how you know. b. By what factor did the medicine decrease in the first half hour? What about in the first hour? Explain how you know. c. Write an equation relating m, the number of milligrams of the drug in the patient's body, and h, the number of hours since the injection. m (h) =