Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ‘ã
2. â
3. ‹Æ
4. ŠÝ

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ