Question

How do you graph exponential decay functions?

Answer 1

This is an example for the function `f(x)=2*e^(-3 x)`

This is just a particular case of the general form `f(x)=a*e^(k x)`
where `a` is a constant representing the value at start and `k` is the rate of growth (when `k>0`) or the rate of decay (when `k<0`).

(Please note that `f` is always a function of time, so the symbol `t` it is often used instead of `x`).