Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. ‹N
2. –½
3. –ð
4. â

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ