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y(x2-2xy+y2) x2y-y2(2x-y) y(x-y)2 y(x+y)2
y3<y2<y1 y2<y3<y1 y1<y2<y3 y1<y3<y2
y(x2﹣2xy+y2) x2y﹣y2(2x﹣y) y(x﹣y)2 y(x+y)2
(-2,y1), (2,y2), (3,y3)都在反比例函数y=-的图象上, 则下列结论中正确的是 A.y1< y2< y3B.y3 < y2< y1C.y1< y3 < y2 y2 < y3 < y1
x=3,y=2 x=3,y=2 x=2,y=3 x=3,y=2 x=2,y=3 x=2,y=3 x=3,y=2 x=2,y=3
2Y/Y和Y/2Y 2Y/△和Y/2△ 2Y/Y和2Y/△ Y/2Y和Y/2△
(-2,y1), (2,y2), (3,y3)都在反比例函数y=-的图象上, 则下列结论中正确的是 A.y1< y2< y3B.y3 < y2< y1C.y1< y3 < y2 y2 < y3 < y1
y (x﹣y)2 y (x + y)(x﹣y) y (x + y)2 y (x2﹣2xy + y2)
(-3,y1), (-2,y2), (-1,y3)三点都在函数y=-的图象上,则y1、y2、y3的大小关系是( ). A.y1>y2>y3 B.y1<y2<y3 C.y1=y2=y3 y1<y3<y2
c1y1+c2y2+y3 c1y1+c2y2-(c1+c3)y3 c1y1+c2y2-(1-c1-c2)y3 c1y1+c2y2+(1-c1-c2)y3
y1>y2>y3 y1>y3>y2 y2>y3>y1 y3>y2>y1
x1=2 y1=2 x2=2 y2=1 x1=2 y1=2 x2=2 y2=2 x1=2 y1=1 x2=2 y2=2 x1=2 y1=1 x2=2 y2=1
y1<y2<y3 y3<y2<y1 y1<y3<y2 y2<y3<y1
y312 y123 y3>y1>y2 y1>y2>y3
c1y1+c2y2 c1Y1(x)+c2Y2(x) c1y1+c2y2+Y1(x) c1y1+c2y2+Y1(x)+Y2(x)
y3<y2<y1 y1<y2<y3 y2<y1<y3 y2<y3<y1
MC(Y1+Y2)=MR1(Y1)=MR2(Y2 MR2(Y2)>MC(Y1+Y2)=MR1(Y1) MR1(Y1)>MC(Y1+Y2)=MR2(Y2) MR1(Y1)=MR2(Y2)=MC(Y1+Y2)
If x<0 Then y=0 If x<1 Then y=1 If x<2 Then y=2 If x>=2 Then y=3 If x>=2 Then y=3 If x>1 Then y=2 If x>=0Then y=1 If x>0 Then y=0 If x<0 Then y=0 Else If>=0Then y=1 Else y=3 End If If x>=2 Then y=3 Else If>=1 Then y=2 Else y=0 End If