Question

Can someone explain to me the limitations on the base of an exponential function?

Answer 1

Base should be positive.

f(x)=a^x, for negative a the function is not defined. for a= 0 your function is not defined at x<=0.

Answer 2

that was an example ^

Answer 3

Should "always" be positive?
Or just most of the time.

Answer 4

?*

Answer 5

Yes
\[ \large a^x=e^{x\ln a} \]

Answer 6

Thanks