For an exponential function [tex]f(x) = 3^{-x}2[/tex] as x goes to infinity, f(x) goes to zero.
We have been given an exponential function [tex]f(x) = 3^{-x}2[/tex]
We need to check the end behavior of f(x) as x goes to infinity.
Consider,
[tex]\lim_{x \to \infty} f(x)\\\\= \lim_{x \to \infty} 3^{-x}2\\\\=2\times \lim_{x \to \infty} 3^{-x}\\\\=2\times 3^{-\infty}\\\\=2\times 0\\\\=0[/tex]
This means, x [tex]\rightarrow[/tex] infinity, f(x) goes to 0
As x goes to infinity, f(x) goes to zero.
Therefore, for an exponential function [tex]f(x) = 3^{-x}2[/tex] as x goes to infinity, f(x) goes to zero.
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