alleryStart learning →What does the amplitude of a sine graph measure?
AThe height of the wave
BThe width of the wave
CThe length of the axis
DThe number of waves
Answer & Solution
Correct answer: A. The height of the wave
1. A sine graph rises above and falls below the horizontal axis.
2. Amplitude is the maximum height of the wave above and below that axis.
3. Amplitude is always written as a positive value, even when the graph is reflected.
4. How wide one complete wave is, is the period instead, which is a separate property.
_Source: Siyavula Mathematics Grade 11 (Everything Maths, CC BY 4.0), Chapter 5: Functions_
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