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