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The x axis displays the values from 0 to 8 in meters, and the y axis displays the values from negative 10 to 10 in meters. The waveform starts from (0, 10), passes through (0.5, 0), (1, negative 8), (1.5, 0), (2, 6), (4, 5), (5.5, 0), (6, 3), (7, negative 2), and (7.5, 0). Two dashed lines join the maximum and minimum points of the wave starting from 10 meters and negative 10 meters. The wave is labeled y of x, the dashed line is labeled 10 e to the power of negative 0.2 x. The wave envelope is formed by dashed lines. All values are estimated.