Warm up – Solve the Quadratic

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Presentation transcript:

Warm up – Solve the Quadratic

Questions over hw? (worksheet)

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

Solving Quadratic Inequalities Graphically

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

1. Solve and graph.

2. Solve and graph.

3. Solve and graph.

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

Solving Quadratic Inequalities Algebraically

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

1. Solve the Inequality. X X

2. Solve the Inequality.

3. Solve the Inequality.

CW/HW Worksheet #1-12