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You can use the Inequality Graphing Application to:

• enter inequalities using relation symbols
• graph inequalities and shade the union and intersection regions
• enter inequalities (vertical lines only) in an X=editor
• trace points of interest (such as intersections) between relations

We will find the solution to the system of inequalities shown here. The first two will have to be solved for y in order to enter them into the graph editor.
Select the application.
Open the application and you will be taken to the graph editor window.
Move the cursor over the = sign. The symbols in the menu at the bottom are accessed via F1-F5 by pressing and then the number you wish.
Press [F3] for Y1 and Y2. Press [F5] for Y3. Enter the values shown. Notice the shading shown to the left of the equation name.
To enter the inequality, move the cursor to the X= and press ENTER to access the X= editor. Put the inequality in as shown.
Set the window.
Now press .
Press [F1] to access the Shades menu.
Select the 1: Ineq Intersection option. This will show the area of intersection. You can also have the union shaded if you want that to be shown.
Press [F3] and you can find the intersection points. Use the cursor to move to each of the intersection points.