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DEL../Y3/F4 DEL X2/Y3/F4 DEL Y3/F4 DEL/Y3/F4
(-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
y3<y2<y1 y1<y2<y3 y2<y1<y3 y2<y3<y1
选择数据从Y3输出 选择数据从I3输入 选择数据从Y6输出 选择数据从I6输入
y2-(6x-y+3z)=y2-6x-y+3z 9y2-[x-(5z+4)]=9y2-x+5z+4 x+[-6y+(5z-1)]=x-6y-5z+1 -(7x+y)+(z+4)=-7x-y-z-4
(-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
2x+3y=5xy (﹣2x2)3=﹣6x6 3y2•(﹣y)=﹣3y2 6y2÷2y=3y
(-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)是该二次函数图象上的三点,则y1、 y2、 y3的大小关系是-----------------------------------------------( ) A.y2< y1< y3 B. y1< y2< y3 C. y3< y2< y1 y2< y3< y1
yl<023 y23<01 y231<0 02l3
x2-3y2 x2-6y2 x2-9y2 2x2-6y2
(2,3), (4,-5)到它的距离相等,则这条直线的方程是( ) A.4x+y-6=0 B.x+4y-6=0 2x+3y-7=0或x+4y-6=0 3x+2y-7=0或4x+y-6=0
(2,3), (4,-5)到l的距离相等,则直线l的方程是( ) A.4x+y-6=0 B. x+4y-6=0 3x+2y-7=0或4x+y-6=0 2x+3y-7=0或x+4y-6=0
x2+y2-4x+6y-8=0 x2+y2-4x+6y+8=0 x2+y2+4x-6y-8=0 x2+y2+4x-6y+8=0
x4+x4=2x8 x3•x2=x6 (x2y)3=x6y3 (x﹣y)(y﹣x)=x2﹣y2
(x+1)(x+4)=x2+5x+4 (y+4)(y-5)=y2+9y-20 (m+2)(m-3)=m2-m-6 (x-3)(x-6)=x2-9x+18