Carlos has taken an initial dose of a prescription medication. The relationship between the elapsed time t, in hours, since he took the first dose, and the amount of
medication, M(t), in milligrams (mg), in his bloodstream is modeled by the following function.
M(t) = 20 -e-0.8t
In how many hours will Carlos have 1 mg of medication remaining in his bloodstream?
Round your answer, if necessary, to the nearest hundredth.
hours

i think the answer is b.

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not 100% sure though.

in the attachment.   i didn't see your choices.   the word which means there is choices.

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(x,y)

x tells you how much left or right you go from the origin

y tells you how much down or up you go from the origin

so for example (-3,2), you go left 3 and up twice. i denoted which of the ordered pairs is which in my graph.

graph them on a graphing calculator, press 2nd trace. select intersect. hit enter until it says answer. ti 84 works best

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i saw this question before, dont know the asnwer srry

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