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