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 Algebraically

5. 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

6. 1. Solve the Inequality. X X

7. 2. Solve the Inequality.

8. 3. Solve the Inequality.

9. Solving Quadratic Inequalities Graphically

10. 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

11. 4. Solve and graph.

12. 5. Solve and graph.
**Divide by -1 and change the inequality sign!!**

13. 6. Solve and graph.

14. CW/HW
Textbook –
Page 304 #35-46 all