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Inequalities
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I'm trying to graph some inequalities tied to the function in the input box. But when I change the function in the input box, the graph of the inequality does not get updated. I'd appreciate any help.
Thanks!
Gabriela Sanchis
 GeoGebra
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Please try with GeoGebra 4.4
Go to Spreadsheet & Graphics
Enter the coefficient of x in cell A1
Enter the constant in cell B2
Go to Algebra & Graphics
Use Input Box linked to cell A1 to change the coefficient of x.
Use Input Box linked to cell B1 to change the constant.
In the Input Bar enter A1*x + B and f(x) =0.5x+2 should appear under function.
In the Input Bar enter y>f(x),return; y≥f(x),return; y<f(x),return; y≤f(x), return.
Click in the circle next to the inequality you want and click to get open circles in the remaining inequalities.
Enter new values in the input boxes. The function will change and the inequalities will follow the new function.
https://ggbm.at/564685
Hi
Your program works correctly in GGB 4.4.1.
If you want to work with GGB 4.2 then maybe this variant helps (with script)
https://ggbm.at/564689
The 'check boxes' are replaced with dropdown list (instead of radiobuttos), but this is not a must.
And following an extended version with the above principle
https://ggbm.at/564691
or with equations (instead of functions in y)
https://ggbm.at/564693
Raymond
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