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Question

anonymous · Answer

or copy and paste. lol

anonymous · Answer

Graph 2 (the one that starts at position -0.5 and goes to 0.5)

anonymous · Answer

I thought it was graph 1. :( can you tell me why please?

anonymous · Answer

Because it is oscillating between compressed and stretched where the point in between is position 0.0.  Therefore, any graph that does not cross through a position of 0 in the middle is not correct.  It must cross through 0 and go the same amount in both the positive and negative direciton, like graph 2

anonymous · Answer

oh ok. thank you