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. By what factor did the medicine decrease in the first half hour? What about in the first hour? Explain how you know. A(0, 270) 250 200 150 100 (1.5, 80) 50 0.5 1.5 2 2.5 h (hours since injection) m (mg of drug in body) శ్రీ శ్రీ శ్ీ క్షి 8

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