反比例二次函数

GeoGebra 命令及参数

1. Numeric a(-1)
2. Numeric b(4)
3. Numeric c(-2)
4. f(x) = (a * x^(2)) + (b * x) + c
5. g(x) = 1 / f(x)
6. ((-b) + sqrt(b^(2) - ((4 * a) * c))) / ((2 * a))
7. ((-b) - sqrt(b^(2) - (4 * (a * c)))) / ((2 * a))
8. x = R_{1}
9. x = R_{2}
10. y = 0
11. (R_{1}, 0)
12. (R_{2}, 0)
13. ((-b) + sqrt(b^(2) - (4 * (a * (c + 1))))) / ((2 * a))
14. ((-b) - sqrt(b^(2) - (4 * (a * (c - 1))))) / ((2 * a))
15. ((-b) + sqrt(b^(2) - (4 * (a * (c - 1))))) / ((2 * a))
16. ((-b) - sqrt(b^(2) - (4 * (a * (c + 1))))) / ((2 * a))
17. (I_{1}, -1)
18. (I_{2}, 1)
19. (I_{3}, 1)
20. (I_{4}, -1)