已知一次函数y1=-x+3与y2=3x-1,当x取何值时,y1>y2?y1=y2?y1
人气:271 ℃ 时间:2019-08-20 07:33:54
解答
1、y1>y2,所以-x+3 >3x-1,4x<4,x<1 2、 y1=y2,所以-x+3 =3x-1,4x=4,x=1 3、 y1
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