Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ‰×
2. â
3. “®
4. •b

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ