You are given a function f (x) and told that the function g(x) = a^(fx),
a>0, has a slope equal to 2 In a at x = 0. Which one of the following
functions could be f (x)?
(1 point)
f(x)=x²
f(x) = e²-1
f(x) = 2x² + 4x
f(x) = 2 cos(x) — 2
f(x) = 2 ln (x + 1)