Constructing a Standing Wave Interference Pattern

[nblu]

Hi, the question was,
"Suppose that the wave represented by the graphs interfered with its OWN reflection.
Sketch one standing wave interference pattern you would expect to observe. On your
sketch, indicate the amplitude of each supercrest and supertrough, and the internodal
distance (using either the time or distance axis)"

So here's the Question image link,
http://img230.imageshack.us/img230/9025/spa0187fa2kv6.th.jpg

and by choosing anyone of the graph, I have drawn a Standing wave, shown below.
http://img248.imageshack.us/img248/6195/spa0190vs6.th.jpg
Red line = Incident
Blue line = Reflected
Green line = Standing wave

I have read that IF a wave reflect, then it would have the same amplitude as the incident wave, and the reflected wave would also have the same frequency and wavelength as its incident wave.

However, I do not have the confidence that my diagram is correct.
I have labeled the Nodes and the Antinodes, but the rest I'm not too sure...
could anyone please correct me?

 

[Mentz114]

You might find this helpful
http://en.wikipedia.org/wiki/Standing_wave

and this

http://hyperphysics.phy-astr.gsu.edu/hbase/waves/standw.html