Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1. Ž–
2. â
3. Ц
4. “™

ƒŒƒxƒ‹3. •ÏX
SDAL“‡‰pŒêŠwZ