# Parametric Form of a Function

## Parametric Form of a Function

The expression of the definition of a function using a parametric equation.

### Example

The function f on the set of real numbers defined by the relation f(x) = Ax² + Bx + C is a function defined in parametric form.

This function can also be defined using the relation f(x) = a(x – h)² + k, which is also a parametric form called the standard form of the second-degree function.