You can put this solution on YOUR website! Rearrange so you have just y on the left hand side:
The solution occurs at any point above the graph y = (1/2)x - 2
Shade the region above the graph to show your solution graphically.
I hope this helps
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk