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›› Geogebra ›› Solving quadratic inequalities
Drag the sliders to change the function f and the constant d. This will also change the inequality being investigated. The function f and the constant d are graphed in the graphics view. The solution to the inequality (that is the values of x for which [math]f>=d[/math]is represented by the blue arrows in the graphics view.

Copyright: Project Maths Development Team 2014