Carpenter Derivative h
- Garry Carpenter
Another version of the Definition of Derivative using a delta-x (or h).
1. Write the expression for the slope of a secant line to the function f(x) through the point (a,f(a)). 2. Move the point (a+h, f(a+h) closer to the point (a, f(a)). 3. Use the concepts from #1 and #2 to write an expression for the slope of the tangent line.