Long description: Block1fig1
Alt text: The image displays a graph of a periodic function, f(t), over time, t.
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- The vertical axis is labeled with the function, f(t), and the horizontal axis is labeled with time, t.
- The graph shows a continuous, wave-like curve that repeats its pattern over time, indicating a periodic function.
- Several complete cycles of the wave are visible, starting from a high point, crossing the time axis, reaching a minimum, returning to the time axis, reaching a maximum, and completing another cycle.
- A double-headed arrow beneath the graph, marked "period," indicates the horizontal length required for the function to complete one full cycle.