Essay

Documenting the Safety Region Graphing Procedure

You are a manufacturing technician drafting a standard operating procedure (SOP) for determining safe machine operating zones. The safe zone on your control panel coordinate map is strictly defined by the following system of inequalities:

y<12x+3y < -\frac{1}{2}x + 3

y<3x4y < 3x - 4

From memory, write out the specific procedure to solve this exact system by graphing. In your response, clearly state:

  1. Whether the boundary lines for both inequalities should be solid or dashed.
  2. The specific result of testing the origin (0, 0) for each inequality (i.e., state whether substituting these coordinates yields a true or false mathematical statement).
  3. Which side of the boundary line to shade for each inequality based on those test results.
  4. How to identify the final safe operating solution area from the graphs.

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Updated 2026-06-03

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