Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ‹‰
2. â
3. ˆ«
4. ‰®

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ