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