Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. â
2. ‘°
3. ˆÏ
4. –û

ƒŒƒxƒ‹3. •ύX
SDAL“‡‰pŒêŠwZ