Amplitude and frequency are important parts that change how trigonometric functions look on a graph.

1. Amplitude: This is how high the wave goes from the middle line. In the equation $y = A \sin(x)$, $A$ shows the amplitude. If $A$ is a bigger number, the graph will stretch up and down more. For example:

   • If $A = 2$, the highest point of the graph will go up to 2 and the lowest point will go down to -2.

2. Frequency: This describes how many times the wave repeats in a certain space. In $y = \sin(Bx)$, $B$ stands for the frequency. If $B$ is a bigger number, the graph gets squished together horizontally. For example:

   • If $B = 2$, you will see two waves between 0 and $2\pi$.

Knowing about amplitude and frequency helps you draw better graphs!