已知点(-2,y1),(-1,y2),(1,y3)都在直线y=-x+b上,则y1,y2

已知点(-2,y1),(-1,y2),(1,y3)都在直线y=-x+b上,则y1,y2,y3的值的大小关系是(      ).

    A.y1>y2>y3        B.y1<y2<y3      C.y3>y1>y2       D.y3>y1>y2

 

答案

A

解析:略

 

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