Compound Interest and Exponential Functions

Compound Interest and Exponential Functions
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2019-02-19 05:01
This example illustrates compound interest and continuous compounding. It uses exponential functions to show how money grows over time. Main GeoGebra commands include functions, slider animation, and locus. Suitable for high school math education and learning.

GeoGebra Commands & Parameters

  1. Numeric r(0.12)
  2. Numeric n(1.0)
  3. f(x) = (1 / n * floor((n * x)))
  4. 0
  5. A2 + 0.25
  6. A3 + 0.25
  7. A4 + 0.25
  8. A5 + 0.25
  9. A6 + 0.25
  10. A7 + 0.25
  11. A8 + 0.25
  12. A9 + 0.25
  13. A10 + 0.25
  14. A11 + 0.25
  15. A12 + 0.25
  16. A13 + 0.25
  17. g(x) = (1 + r / n)^((n * f(x)))
  18. g
  19. g(A2)
  20. g(A3)
  21. g(A4)
  22. g(A5)
  23. g(A6)
  24. g(A7)
  25. g(A8)
  26. g(A9)
  27. g(A10)
  28. g(A11)
  29. g(A12)
  30. g(A13)
  31. g(A14)
  32. k(x) = ℯ^((r * x))
  33. h(x) = (1 + r)^(x)
  34. (r * 100)
  35. k
  36. k(A2)
  37. k(A3)
  38. k(A4)
  39. k(A5)
  40. k(A6)
  41. k(A7)
  42. k(A8)
  43. k(A9)
  44. k(A10)
  45. k(A11)
  46. k(A12)
  47. k(A13)
  48. k(A14)