Interactive: Tangent of f(x) Turn off f′ and f″ before beginning the exercise. Licenses & AttributionsCC licensed content, Shared previouslyderivative, tangent of f(x). Provided by: OER Commons Authored by: Geogebra. Located at: https://www.geogebra.org/m/gjfBjqeS. License: CC BY-SA: Attribution-ShareAlike.