Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. —V
2. â
3. Ӎ
4. ˆÃ

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ