Algebra-1

To identify which function demonstrates exponential decay, check the base of the exponent in each function. For exponential decay:

Base 0 < b < 1: The function decreases as x increases.

 

A.

Base: (less than 1)

Behavior: Exponential decay. As x increases, y decreases.

 

B.

Base:  (greater than 1)

Behavior: Exponential growth. As x increases, y increases.

 

C.

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