Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ‰»
2. ‹}
3. Ž–
4. â

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ