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