Slope of Secant Lines
- Author:
- Jason Miner
Enter your function f(x) and your point of tangency a. Move the h slider to see what the slope of the secant lines approach as h approaches 0 from either side of a. Note that this illustrates the limit definition of the derivative of a function.
To change the viewing window, hold the shift button and left-click to drag the graph or use the scroll wheel to zoom in/out. You can also adjust the axes by holding the shift button and left-click on the axis you want to change.