Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. •½
2. ‹…
3. â
4. •Ÿ

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ