IMlustrative Mathematics 4. The graph shows the amount of a chemical in a patient's body at different times measured In hours since the levels were first checked. Could the amount of this chemical in the 1,200 T(0,1000) patient be decaying exponentially? Explain how you know. 800 (1,600) (2,360) 400 1. 4. time (nours) chemical (mg)

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