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