# Illustration of First Derivative

- Author:
- Tadhg Power

- Topic:
- Derivative, Tangent Function

Investigate how the derivative of a curve relates to the curve in terms of x values and slope of tangent to curve.

Move the point on the curve around to show how the tangent to the curve changes
Click on checkboxes 'x values' to show relationship between x value of point on curve, and x value of derived function
Click on checkbox 'Slope of f(x)' to show relationship between slope of tangent and y value of derived function.
Click on checkbox 'Derived Function to show trace of derived function as x value of original function changes.