Answer:
option A
The base is e^-1
Step-by-step explanation:
Given in the question a function, f(x) = (1/e)[tex]^{x}[/tex]
This function can also be write as.
f(x) =[tex](e^{-1})^{x}[/tex]
by using Negative Exponent Rule
[tex]x^{-n}=\frac{1}{x^{n}}[/tex]
This says that negative exponents in the numerator get moved to the denominator and become positive exponents.
