Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1.
â
2.
Ÿ
3.
Žæ
4.
Šú
ƒŒƒxƒ‹3.
•ÏX
SDAL“‡‰pŒêŠwZ