Here is a good site for graphing half-planes.

**http://hotmath.com/help/gt/genericalg1/section_4_4.html**

This is an interactive site which will graph half-planes.

Write the given inequality in the form

*Ax* + *By* <* C
*

*or*

*Ax*+

*By*>

*C*

with the inputs on the other row zeros.

If you want to graph an inequality with equality included, then draw the boundary solid rather than the shown dashed boundary.