Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. _
2. â
3. ‰w
4. ‘Î

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ