Š¿Žšƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
slope =
1.
ˆã
2.
“s
3.
•ž
4.
â
ƒŒƒxƒ‹3.
•ÏX
SDAL“‡‰pŒêŠwZ