Answer
See the graph below.
Work Step by Step
The wave took about 6 seconds to be fully represented while it is moving at 1 m/s to the right.
This means that the width of the wave is 6 m.
The history graph of the point at $t=0$ s, the leading edge at $x=0$ m, and $D=1$ cm. And since the wave is 6 m wide, the trailing edge is then at $x=-6$ m.
And if we need to find the graph at $t=1$, the trailing edge is then at $x=-5$ m.
See the graph below.
