Distance, Velocity, Acceleration: Graphs

We had an activity again, this time having to walk a graph. No I'm not speaking in horrible grammer, we walked a graph.

Using a motion detector connected to the computer with a program called Logger Pro, we could graph our movements front of the motion detector. We were given 6 graphs already drawn, and had to move in certain ways to try matching the lines created by our movements to the predrawn graph. This would help us understand what the graphs show.
Unfortunately, our group was only able to finish two. Here they are:

Yeahhh we were focusing too hard on matching the graphs. The thing was lagging and skipping too, it totally wasn't because Jess is an OCD leader shut up so I say we were excused. We were about to finish one with velocity, but we didn't finish in time. I couldn't screenshot it.
NO STOP SHUNNING ME WITH YOUR IN YOUR MIND. I KNOW YOU ARE.

<Edit>
We're supposed to blog about the hypothesis of velocity and acceleration graphs for the ones we finished.
The first graph's velocity and acceleration would look something like this:

It's a basic sketch, so the numbers aren't correct. Acceleration is right though, it'll always be zero. For velocity, it'll first be zero, then rise to 1.5m/2s = 0.75 m/s, drop back to zero, then 0.7m/1.5s = 0.47m/s in negative, then back to zero again.

For the second graph it'll be like this:

Acceleration will be zero again, as there is no speeding up in these graphs. There probably were some graphs given that had some accerelation, but y'know, I didn't get to them.
Velocity will be at 1.5s/3m = 0.5 m/s at first, then zero, 1m/1s = 1 m/s, then zero, 2.5m/3s = 0.83 m/s at the end.