1. The problem statement, all variables and given/known data State whether (e^4-x) + 2 is an exponential growth function or an exponential decay function. Explain why. 2. Relevant equations I want to use the formula f(x) = ae^kx where a>0, and k<0. 3. The attempt at a solution I know it is an exponential decay formula because the limit as x goes to -inf. = inf. and the limit as x goes to inf. = 2. But I do not know how to describe what a and k are in this equation to show it is an exponential decay function.