# Definition of Derivative

- Author:
- Ισίδωρος Γλαβάς, Simona Riva

- Topic:
- Derivative

Move the slider , which represents the independent variable increment.
When tends to line , the tangent in approaches 0, is the slope of the tangent to the curve in and of the tangent change accordingly.

*B*tends to*A*along the function graph, line*A*to the curve. The limit of the*difference quotient*, as*A*. You can also move the point*A*along the function and explore how the slopes ofApplying the definition, calculate the derivatives of the following functions, in the given points: