GraphingCalculator 3.2;
SignificantDigits 8;
FontSizes 18 12 9;
BackgroundColor 128 128 128;
Slider -10 10;
SliderSteps 40;
SliderControlValue 8;
SliderVariable k;
2D.Scale 2.5 2.5 1 1;
2D.BottomLeft -19.53125 -33.125;
Expr [x-h]^2=4*[y+k];