问题
选择题
已知点A(-5,y1),B(x2,y2)都在直线y=-
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答案
∵直线y=-
x+1的系数k=-1 2
<0,1 2
∴对于点A(-5,y1),B(x2,y2),
∵y1<y2,
∴-5>x2,
即x2<-5
故选A.
已知点A(-5,y1),B(x2,y2)都在直线y=-
|
∵直线y=-
x+1的系数k=-1 2
<0,1 2
∴对于点A(-5,y1),B(x2,y2),
∵y1<y2,
∴-5>x2,
即x2<-5
故选A.
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