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Trough
Refers to the lowest point or the minimum value of the wave.
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The diagram below shows a simple wave with four points labeled. Which letter correctly identifies the trough?
Imagine a simple wave form displayed on a graph, oscillating above and below a central horizontal line. Four points are labeled: Point A is at the highest peak of the wave, Point B is at the lowest valley, Point C is where the wave crosses the central line while moving downwards, and Point D represents the vertical distance from the central line to the highest peak. Which point correctly identifies the trough of the wave?