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Which function represents exponential decay?

f(x) = One-half(2)x
f(x) = Three-fourths(Negative one-fifth)x
f(x) = 3(Seven-halves)x
f(x) = 2(Two-thirds)x

Respuesta :

f(x) = 2(Two-thirds)x


Explanation:
Exponential functions are in the form
y= ab^x If a is positive and b is greater than 1, then it is exponential growth. If a is positive and b is less than 1 but greater than 0, then it is exponential decay.

Answer:

D

Step-by-step explanation:

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