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