te 1iBDd 7 (下時
71. Sketch a graph of a function t
fojjowing propertles:
as MGCc) 一0 whenrx h
en
b. 7/Gx) 一0 when一1 大 3
be 7 1 0. 0
72. Find constants gd, 5, and cs
the function GO 三 dx 十 訪 +如
maXimum at (5, 12) and crosSes the 》
ax1s at (0, 3).
>P工 Shaffer and H. 了 Gold, “A Simulation Model of Populat'on
Dynamics of fhe Codling Moth_ Cydgzg Porag7lef/0y Zcofogicd/
ozZezzzg, VoJ. 30, 1985, pp. 247一274.
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