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Which functions are examples of exponential growth? a)  f(x) = 5^x b)  f(x) =...

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kristenmarieb... | Student, Grade 10 | Valedictorian

Posted August 10, 2013 at 1:44 AM via web

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Which functions are examples of exponential growth?

a)  f(x) = 5^x

b)  f(x) = (1/2)^x

c)  f(x) = (1/2)^-x

d)  f(x) = 3^-x

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aruv | High School Teacher | Valedictorian

Posted August 10, 2013 at 2:16 AM (Answer #1)

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A.  `f(x)=5^x`    example of exponential growth

C.  `f(x)=(1/2)^(-x)=(2^(-1))^(-x)=2^x`     example of exponential growth.

other two are examples of non-growth.

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