1. Warm up – Solve the Quadratic

2. Questions over hw? (worksheet)

3. How do we solve quadratic inequalities?
GSE Algebra II
UNIT QUESTION: How are real life scenarios represented by quadratic functions?
Today’s Question:
How do we solve quadratic inequalities?
Standard: MCC9-12..A.CED.1, A.REI.4

4. Solving Quadratic Inequalities Graphically

5. Solve Quadratic Inequality
Write in standard form. *variable must be on the left side*
Change the inequality to = and solve
Graph the solutions and y-int.
Shade above for Greater Than and shade below for Less Than *look for open/closed dots*
5. Write the answer in interval notation

6. 1. Solve and graph.

7. 2. Solve and graph.

8. 3. Solve and graph.

9. Here is another method if you need more help!
Questions??
Here is another method if you need more help!

10. Solving Quadratic Inequalities Algebraically

11. Solve Quadratic Inequality
Write in standard form
Change the inequality to = and solve
Plot the solutions on number line. *look for open/closed dots*
Test the number 0 to see if it satisfies the inequality.
5. Write the answer in interval notation

12. 1. Solve the Inequality. X X

13. 2. Solve the Inequality.

14. 3. Solve the Inequality.

15. CW/HW
Worksheet #1-12