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P (t) = (116, 000) (2.23)^{t /3}

A researcher is studying the growth of an Escherichia coli bacteria culture. The given function

P (t)

models the population of the culture, in Colony Forming Units (CFUs),

t

hours after the study begins. Which statement is the best interpretation of

(2.23)^{t /3}

Every

20

minutes, the population increases by

142, 680

CFUs.

Every

20

minutes, the population increases by

123%

Every

3

hours, the population increases by

142, 680

CFUs.

Every

3

hours, the population increases by

123%

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