Example 3

Author:
Walch Education
Topic:
Function Graph
The shaded half plane in the graph shown represents the solution set for the inequality . Use both substitution and the graph of the inequality to determine which values from the set make the inequality true.
  1. Use substitution to determine if makes the inequality true.
  2. Use the graph of the inequality to determine if makes the inequality true.
  3. Use substitution to determine if makes the inequality true.
  4. Use the graph of the inequality to determine if makes the inequality true.
  5. Use substitution to determine if makes the inequality true.
  6. Use the graph of the inequality to determine if makes the inequality true.
  7. Use substitution to determine if makes the inequality true.
  8. Use the graph of the inequality to determine if makes the inequality true.
  9. Summarize your results.
This applet is provided by Walch Education as supplemental material for their mathematics programs. Visit www.walch.com for more information on their resources.