Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. •Ÿ
2. â
3. Œ¤
4. ŠK

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ