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# Linear Inequalities Part 2

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Algebra 1- Day 1 lesson plan was just on solving inequalities. This is the lesson plan for day 2 where I introduced graphing and interval notation.

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### Linear Inequalities Part 2

1. 1. Warm Up <ul><li>Solve. 6x + 5 < 23 Solve. -17 > 5x – 2 </li></ul><ul><li>Write the following as an inequality. </li></ul><ul><li>All numbers greater than or equal to 0. </li></ul><ul><li>Where do numbers end? </li></ul><ul><li>Name this celebrity baby      </li></ul>
2. 2. Graphing Inequalities <ul><li>There are three pieces to graphing: </li></ul><ul><li>Number Line </li></ul><ul><li>Dot </li></ul><ul><li>Shading </li></ul>Inequality Dot < and > ≤ and ≥
3. 3. Graphing Inequalities <ul><li>x < 2 </li></ul>Line Dot Shade
4. 4. Graphing Inequalities <ul><li>x > -2 </li></ul>Line Dot Shade
5. 5. Graphing Inequalities <ul><li>x ≤ 1 </li></ul>Line Dot Shade
6. 6. Graphing Inequalities <ul><li>x ≥ 0 </li></ul>Line Dot Shade
7. 7. Graphing Inequalities <ul><li>Solve, then graph. </li></ul><ul><li>x + 3 ≤ 2(x – 4) </li></ul>
8. 8. Graphing Inequalities <ul><li>Video </li></ul>
9. 9. Graphing Inequalities Now that we know how to graph, we need to learn how to write the answer as an interval. Inequality Dot Interval < and > Empty ( ≤ and ≥ Full [
10. 10. Graphing Inequalities <ul><li>Here are the steps: </li></ul><ul><li>Solve </li></ul><ul><li>Graph </li></ul><ul><li>Change </li></ul><ul><li>Interval </li></ul><ul><li>-6 + 5x < 19 </li></ul>
11. 11. Graphing Inequalities <ul><li>Here are the steps: </li></ul><ul><li>Solve </li></ul><ul><li>Graph </li></ul><ul><li>Change </li></ul><ul><li>Interval </li></ul><ul><li>x + 3 ≤ 2(x – 7) </li></ul>
12. 12. Graphing Inequalities <ul><li>Here are the steps: </li></ul><ul><li>Solve </li></ul><ul><li>Graph </li></ul><ul><li>Change </li></ul><ul><li>Interval </li></ul><ul><li>-x + 6 > -(2x + 4) </li></ul>