Quadratic Graph - QESOSASS

Author:Choi King Hong

Slide the rulers to change the values of a, b and c. Observe the changes of the quadratic graph, especially the coordinates of A (on the y-axis) and V (the vertex).

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多邊形的面積
圓的切線方程
盈利與虧蝕
双心四边形
撒针估算面积实验

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过圆上一点作切线，三步
分數乘法的副本
直線與平面垂直
重心
用交轨法求动点的轨迹方程图.许兴华数学

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Vectors
Prism
Fractions
Constructions
Binomial Distribution