I am trying to perform a multiple regression in `R`. However, my dependent variable has the following plot:

![DV][1]

Here is a scatterplot matrix with all my variables:

![SPLOM][2]

I know that I need to perform a transformation on this variable (and possibly the independent variables?) but I am not sure of the exact transformation required. Can someone point me in the right direction? I am happy to provide any additional information about the relationship between the independent and dependent variables.

The diagnostic graphics from my regression look as follows:

![Diagnostic plots][3]


  [1]: https://i.sstatic.net/AMXDm.jpg
  [2]: https://i.sstatic.net/qKsGL.jpg
  [3]: https://i.sstatic.net/sduyK.jpg