Question

Consider the following equation:

f′(a)=limh→0 (f(a+h)−f(a))/h

Let f(x)=3√x If a≠0, use the above formula to find f′(a)=
Show that f′(0) does not exist and that f has a vertical tangent line at (0,0)

Answer 1

so you would plug in 0 for a from the beginning since this is numerical slope definition of a derivative