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