Unit 2: Analyzing Linear Inequalities Vocabulary Crossword Puzzle

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Across
  1. 2. A closed circle means the value is included in the solution. It is used for ≤ and ≥ inequalities.
  2. 4. A dashed line means the boundary value is not included. It is used for < and > inequalities.
  3. 10. Less than or equal means the value is no more than a certain number. It uses the ≤ symbol.
  4. 13. An open circle means the value is not included in the solution. It is used for < and > inequalities.
  5. 14. Shading shows all the points that make the inequality true. It marks the solution region on the graph.
  6. 15. A solution set includes every value that makes the inequality true. It can be shown on a graph or in notation.
  7. 16. A solid line means the boundary value counts as part of the solution. It is used for ≤ and ≥ inequalities.
  8. 18. A linear inequality has a straight-line boundary when graphed. It shows all solutions on one side of the line.
  9. 20. Point-slope form uses a point and the slope to write an equation. It is written as y − y₁ = m(x − x₁).
Down
  1. 1. An inequality compares two values using <, >, ≤, or ≥. It shows a range of possible answers instead of just one number.
  2. 3. Greater than means a value is larger than another. It uses the > symbol.
  3. 5. A system has two or more inequalities together. The solution is where the shaded regions overlap.
  4. 6. The y-intercept is where a line crosses the y-axis. It happens when x equals zero.
  5. 7. Greater than or equal means the value is at least a certain number. It uses the ≥ symbol.
  6. 8. Slope shows how steep a line is. It is found by dividing rise by run.
  7. 9. A boundary line is the line you draw before shading an inequality. It separates the plane into two regions.
  8. 11. Interval notation uses parentheses or brackets to show solution ranges. It is a shorter way to write intervals on a number line.
  9. 12. Set notation uses brackets to list or describe solutions. It is a formal way to show all values that work.
  10. 17. Graphing shows the inequality on a coordinate plane. It includes the boundary line and the shading.
  11. 19. Less than means a value is smaller than another. It uses the < symbol.