You can 
put this solution on YOUR website! 
You didn't state what you want.  Do you want the equation of the line through
P(-2,1) parallel (or maybe perpendicular) to the line y=1/4x-3?
Do you want the distance from the point P(-2,1) to the line y=1/4x-3? 
You must tell us what you want us to do.  Otherwise, we can't know.
Edwin