PLEASE HELP ME A scientist recorded the movement of a pendulum for 10 s. The scientist began recording when the pendulum was at its resting position. The pendulum then moved right (positive displacement) and left (negative displacement) several times. The pendulum took 4 s to swing to the right and the left and then return to its resting position. The pendulums furthest distance to either side was 6 in. Graph the function that represents the pendulums displacement we a function of time.

(A) write an equation to represent the displacement of the pendulum as a function of time

(B) graph the function

Please also show me the graph along with explanation of the problem