y=(2-m)x+2m-3
(1)2-m≠0,
2-3=0,
m=3/2時(shí),此函數(shù)為正比例函數(shù)
（2）2-m≠0
m≠2時(shí),此函數(shù)為一次函數(shù)
函數(shù)y=(2-m)+2m-3求m為何值時(shí)1、此函數(shù)為正比例函數(shù)?2、此函數(shù)為一次函數(shù)
函數(shù)y=(2-m)+2m-3求m為何值時(shí)1、此函數(shù)為正比例函數(shù)?2、此函數(shù)為一次函數(shù)
數(shù)學(xué)人氣：337 ℃時(shí)間：2020-01-13 06:18:38
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