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11-11-2020
Mathematics

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Given the exponential function [tex]f(x) = -2(0.8)^x[/tex], what is the value of f(x) when x =0?

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jimthompson5910 jimthompson5910

11-11-2020

Answer: -2

Work Shown:

[tex]f(x) = -2(0.8)^x\\\\f(0) = -2(0.8)^0\\\\f(0) = -2(1)\\\\f(0) = -2\\\\[/tex]

In the third step, I used the idea that [tex]x^0 = 1[/tex] where x is any nonzero number.

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