Exponential (e^x)
g(x) = equation to tangent line of f(x) at point (a,f(a))
Line B = Secant line approximating the instantaneous slope at point (a,f(a). The slope of the secant line provides an approximation of the slope of the tangent line (instantaneous slope).
Slider A= Slide to change the point of tangency and where the secant line is centered at.
Slider H= Slide to change the distance from a to the points the secant line crosses.
(f(x+h)-f(x-h))/(2h)
Right Click to zoom in and out