Summary: Shading Inequalities

Shading Inequalities                                                                 October 25, 2011

OBJECTIVE: SWBAT RECALL INEQUALITIES AND HOW TO SOLVE THEM

Today we learned more about inequalities and about how to shade the graph. For shading a graph, you either shade with or without the point you are using to substitute it in an equation. For example, let’s use the inequality y<4x-3. For x and y we will substitute in the points (0, 0). Now the equation reads 0<4(0)-3. Solve that and it reads 0<-3. If this inequality is true then you will shade the part that INCLUDES the points (0, 0). If the inequality is false then you would shade AWAY from the point.

EXAMPLE:

y<4x-3