Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. —Ž
2. â
3. —ñ
4. ‹Ž

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ