y= 200(x-8),0

来源：学生作业帮助网编辑：六六作业网时间：2024/12/25 16:33:56

y=200(x-8),0y=200(x-8),0y=200(x-8),0当x>40时4(x-40)表示的是少出租的房间y=4(X-40)(X-8)表示的是利润我觉得你写的有问题.当x>40时y=[20

y= 200(x-8),0
y= 200(x-8),0

y= 200(x-8),0
当 x>40时
4(x-40)表示的是少出租的房间
y=4(X-40)(X-8)表示的是利润
我觉得你写的有问题.

当 x>40时
y=[200-4(x-40)](x-8)
=(200-40x+160)(x-8)
=(360-4x)(x-8)
=4(90-x)(x-8)

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