Oct 18, 2018
Graphing a Linear Inequality in Two Variables
1. replace the inequality sign with an equal
2. solve
3. graph: Â Â Â -- use a solid line if the original inequality contains (greater than or equal to) or (less than or equal to) Â Â Â -- use a dashed line if the original inquality contains < or >
4. choose a test point, not on the line
5. substitute the coordinates of the test point into the inequality
6. true or false?    -- if it is false, shade the half without the point    -- if it is true, shade the half with the point
