The amplitude of the given graph is 2 unit.
Amplitude:
It is the height of the wave measures by the distance between highest and lowest position of the wave.
How to find amplitude?
Here the lowest position of the wave is = 1
And the highest position of the wave that is peak = 3
The amplitude = 3 - 1 = 2
hence the final answer is 2 unit.
Learn more about amplitude here-
https://brainly.com/question/413740
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