At an ocean depth of 20 meters, a buoy bobs up and then down 2 meters from the ocean's depth. four seconds pass from the time the buoy is at its highest point to when it is at its lowest point. assume at x = 0, the buoy is at normal ocean depth. use the sine tool to graph the function. the first point must be on the midline and the second point must be a maximum or minimum value on the graph closest to the first point.

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