Secant and Tangent Lines
Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
This Demonstration illustrates the connection between the secant line and the tangent line at a point on a curve. You can vary the point of tangency and the difference 
of the 
values of the two points defining the secant line.
Contributed by: Joshua Fritz, Angela Sharp, and Chad Pierson (September 2007)
Open content licensed under CC BY-NC-SA
Snapshots
Details
detailSectionParagraphPermanent Citation
"Secant and Tangent Lines"
http://demonstrations.wolfram.com/SecantAndTangentLines/
Wolfram Demonstrations Project
Published: September 18 2007
The Tangent Line Problem
Samuel Leung and Michael Largey
Two Tangent Lines to a Parabola
Soledad Mª Sáez Martínez and Félix Martínez de la Rosa
Secant Approximations
Chris Boucher
Finding a Tangent Line to a Parabola
Jon Mormino
Tangent Line Using Many Different Limit Configurations
Soledad María Sáez Martínez and Félix Martínez de la Rosa
Tangent ODE Chase
Michael Trott
Tangent Planes on a 3D Graph
Drew Kozicki
Tangent to a Catenary
Izidor Hafner
Tangent to a Surface
Jeff Bryant and Yu-Sung Chang
Quadratics Tangent to a Cubic
Robert L. Brown
