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Mathematics 16 Online
OpenStudy (anonymous):

Which function is always decreasing? f(x) = (-3.4)^-x or (3.4)^-x

OpenStudy (blockcolder):

Isn't a^x defined only for positive a? Therefore, (-3.4)^(-x) isn't defined. In any case, (3.4)^-x is always decreasing.

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