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# 3.3 a writing systems of linear inequalities

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### 3.3 a writing systems of linear inequalities

1. 1. 3.3A WRITING A SYSTEMOF LINEAR INEQUALITIESToday’s objectives: I will graph a system of 1. linear inequalities. I will write system of linear 2. inequalities given a graph.Graphing using the y-intercept & slope. 1) If < or >, make the lines dotted (dashed). 2) If < or >, make the lines solid. 3) If ‘y >’ or ‘y ≥’, above the line. 4) If ‘y <’ or ‘y ≤’, below the line.
2. 2. Writing a system of linear inequalities givena graph. 1) Write an equation for each line. 2) Change each equation to an inequality based on the shading. a) If the lines are dotted (dashed), use < or >. b) If the lines are solid, use < or >. c) If the shading is above, use > or >. d) If the shading is below, use < or <.
3. 3. Example 1.
4. 4. Example 2.
5. 5. Example 3.