A good start would be to solve for "y". Then graph the corresponding "y=" (remembering to use a dashed line, of course). Then shade the appropriate side of the line.
If you get stuck, please reply showing (or describing) how far you have gotten. If you need instruction (that is, lessons) before you can get started on some part of this (solving linear inequalities? graphing linear equations? etc), please specify the topic you seek.
Thank you.
Eliz.