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