## anonymous 4 years ago limit of x to 4 of (2^(x)-16)/(x-4) what derivative does it represent? what is the number of a?

looks like the notation is for the derivative of the function at 'a'$f'(a)=\lim_{x \rightarrow a}\frac{f(x)-f(a)}{x-a}$which is backwards from how I am used to seeing it, but is still good I guess. spelling it out like this should make the answers clear