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A population of bacteria is changing exponentially according to the function below. How can you describe the bacteria population? Select all possible correct answers.

B(t)=400(1.4)^0.8t +2

A) The population is always positive
B) The population is decaying
C) The population is growing
D) The population is approaching a constant value

1 Answer

1 vote
A, it's always positive because B(0) = 400
C, the population is growing. you can tell because the base is the rate of growth 1.4 > 1
User Tri Nguyen Dung
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