Chapter 7 - Exponents and Exponential Functions - 7-7 Exponential Growth and Decay - Lesson Check - Page 463: 3

The decay factor is 0.2

Work Step by Step

The exponential formula is y=a(b$)^{x}$.A is the initial amount and B is the growth/decay factor. Therefore, the decay factor of y=17 $\times$ $0.2^{x}$ is 0.2 because it is the value of B.

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