Parameter 1 is called the angular frequency of the function. It is often represented by the Greek letter ω. To understand what this means, first determine the time it takes for the dot to go around the circle once on the graph; this will be the time interval from the point where the graph crosses the time axis to the next time it crosses with the same slope. Select the graph: Go to Graph Tools and turn on the Interpolate feature. With the mouse, point to the third place where the Y(m) graph crosses the time axis. (You adjusted the phase angle so the first place crosses the origin of the graph.) The coordinates of that point are shown in the graph window. What is this value (with units) of the time interval (to three significant digits)? It is called the "period" of the motion and denoted T. With the mouse, point to the third place where the (m) graph crosses the time axis on the fixed graph. My value was 40.1002 s. The time found was -568 seconds.
(m) Calculate
This is the "frequency" of the motion. Write value with units.