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Solving Quadratic Inequalities Graphically

Solving Quadratic Inequalities Graphically
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2017-02-08 08:14
FunctionInequalityGraphing
This example demonstrates solving quadratic inequalities graphically. Key mathematical concepts include quadratic functions and inequalities. GeoGebra commands such as Point, Intersect, and OrthogonalLine are used for construction. Suitable for high school mathematics education and learning.

GeoGebra Commands & Parameters

  1. Point(f) → E
  2. Intersect(f, e, 1) → A
  3. Intersect(f, e, 2) → B
  4. OrthogonalLine(A, xAxis) → g
  5. OrthogonalLine(B, xAxis) → h
  6. Intersect(g, xAxis) → C
  7. Segment(A, C) → i
  8. Intersect(h, xAxis) → D
  9. OrthogonalLine(E, xAxis) → k
  10. Intersect(k, xAxis) → F
  11. Segment(E, F) → l
  12. Point(f) → G
  13. SelectedIndex(L) → Ineq