Question

What is Amplitude?

Answer 1

`"(Amplitude)"=1/2["(Highest Value)"-"(Lowest Value)"]`

---

graph{4sinx [-11.25, 11.25, -5.62, 5.625]}

In this sine wave the highest value is `4` and the lowest is `-4`

So the maximum deflection from the middle is `4`k.

This is called the amplitude

If the middle value is different from `0` then the story still holds
graph{2+4sinx [-16.02, 16.01, -8, 8.01]}

You see the highest value is 6 and the lowest is -2,
The amplitude is still `1/2 (6- -2)=1/2 *8=4`