The height of the tracks of a roller coaster varies sinusoidally with the horizontal distance from its starting point. The roller coaster tracks start from the lowest point of the sinusoidal curve and reach a maximum height of 66 meters. The tracks return to the surface of the park for the first time at 198 meters. What is the slope of the roller coaster track at 132 meters from the starting point? _________radians :surprised All I can think of is to start with slope slope is given by the derrivative. y = sin x for the wave. Therefore, y= cos x Anything beyond that is kinda fuzzy, any help would be appreciated.