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