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