线性方程绘图与斜率y截距识别

GeoGebra 命令及参数

1. Random(1, 2) → n
2. Random(-9, 9) → n_{1}
3. Random(-9, 9) → b
4. RandomElement(Sequence[i, i, 1, 9, 1]) → d
5. If(n ≟ 1, f, g) → h
6. Textfield(a) → InputBox1
7. Textfield(c) → InputBox2
8. Line(A, B) → i
9. Intersect(eq1, p) → C
10. Vector(B, C) → u
11. Vector(C, A) → v
12. Polygon(B, C, A) → t1, a_1, b_1, c_1
13. Intersect(i, yAxis) → D
14. Intersect(xAxis, yAxis) → E
15. Vector(E, D) → w
16. FractionText(n_{1} / d) → text8