In a

sinusoidal function defined in its

parametric form, which is \(f(x)=a·\sin (b(x-h))+k\), the amplitude

*A* of the function is provided by the absolute value of the parameter

*a* :

*A* = |

*a*|.

### Examples

In this graph, the function defined by *f*(*x*) = 2 sin(*x*) has an amplitude of 2.