simulink x matlab

[bunda222]

Hi guys
I'm trying to perform a PD controller using simulink, but the result is different from the one I found using Matlab. First I've calculated y(t) of the system, where y(t) is the output. Then I ploted y(t) x t.

 

[bunda222]

Here is the link to download the file I did using simulink.

 

[bunda222]

These are the images I got using matlab and simulink. They were suppose to be the same.

 

[bunda222]

using simulink

 

[bunda222]

I just want to know why do the graphs are not the same?