全球税收比较与图形交点演示
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①本范例通过绘制不同国家的税收数据,演示函数图像的交点现象;②涉及核心数学概念包括函数图像、解析几何、不等式求解;③作图要点运用了Segment(线段)、Point(点)、Intersect(交点)等GeoGebra命令,以及A1, B1, A, B, C, D, f, g, UK, E等对象;④适合高中阶段数学教学,用于理解函数交点在实际数据中的应用。
GeoGebra 命令及参数
Segment(A, B) → fSegment(B, C) → gSegment(C, D) → UKSegment(A, E) → RussiaPoint(UK) → FPoint(UK) → GSegment(H, I) → hSegment(I, J) → AustraliaSegment(K, L) → iSegment(L, M) → jSegment(M, N) → TurkeySegment(O, P) → kSegment(P, Q) → USASegment(Q, R) → mSegment(A, O) → lSegment(H, B) → nSegment(S, J) → pPoint(i) → TIntersect(f, Russia) → USegment(T, U) → qIntersect(Sarah, g) → VIntersect(Sarah, n) → WIntersect(Sarah, k) → ZIntersect(Sarah, Russia) → A_1Intersect(Sarah, j) → B_1Intersect(Joe, g) → C_1Intersect(Joe, Russia) → D_1Intersect(Joe, h) → E_1Intersect(Joe, j) → H_1Intersect(Joe, k) → I_1Intersect(Gerry, Russia) → J_1Intersect(Gerry, USA) → L_1Intersect(Gerry, Australia) → M_1Intersect(Gerry, UK) → N_1Intersect(Gerry, Turkey) → O_1Intersect(Shami, Russia) → P_1Intersect(Shami, m) → Q_1Intersect(Shami, p) → R_1Intersect(Shami, UK) → S_1Intersect(Shami, Turkey) → T_1