The distance, in inches, from the starting position of a swinging pendulum over time, in seconds, is represented by the graph below. when f(x) = 0, the pendulum is at its starting position. when f(x) > 0, the pendulum is to the left of its starting position, and when f(x) < 0, the pendulum is to the right of its starting position. the function describing this graph is a transformation of the parent cosine function, y = cos x. which value best describes the amplitude of the transformed function? a. 0 inches b. 6 inches c. 1.5 inches d. 3 inches