The value of h→0limhf(2+h)−f(2) for a certain function f is −4. What does this tell you about the graph of y=f(x) at the point (2,f(2))?
a) The normal at the point has slope −4.
b) The tangent at the point has slope −4.
c) The y-coordinate of the point is −4.
d) The tangent at the point has slope 4.