1. Lesson 7-5 Graphing Systems of Inequalities
Here’s how to do it…
Get y by itself in both inequalities
Go to the “y=“ menu and type your first inequality in y1, and second in y2
Scroll to the far left and select the appropriate setting for inequality
Graph. To plot your graph, access your table (2nd Graph) and pick 3 points for each graph

2. Solve the system of inequalities by graphing.
Answer:
The solution includes the ordered pairs in the intersection of the graphs of and The region is shaded in green. The graphs and are boundaries of this region. The graph is dashed and is not included in the graph of . The graph of is included in the graph of
Example 5-1a

3. Solve the system of inequalities by graphing.
Answer:
Example 5-1b

4. Solve the system of inequalities by graphing.
Answer:
The graphs of and are parallel lines. Because the two regions have no points in common, the system of inequalities has no solution.
Example 5-2a

5. Solve the system of inequalities by graphing.
Answer: Ø
Example 5-2b