Assume you have a video clip of someone walking from left to right. You draw a position-versus-time graph of the motion and choose your origin to be the left edge of the frame. A friend chooses to take the right edge of the frame as the origin. Both of you choose the positive \(x\) direction to be from left to right.

(a) How would your graphs differ? \((b)\) Would the two be equally good representations of reality?