(Level 1-2) The height, h(t), in centimeters, of a bicycle pedal above the ground at time, t, seconds is a
cosine function of the form h(t) = A cos(bt) + C, where (bt) is measured in degrees.
The graph of this function for 0 s t s 4.3 is shown below.
h(t) = Acos(bt) + C
pedal (cm) 20-