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二次函数y=-(x-2)²-3的最大值是
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二次函数y=-x2-2x+4的最大值为
3
4
5
6
二次函数y=x2+2x-5有
最大值-5
最小值-5
最大值-6
最小值-6
已知二次函数y=-2x2-4x+1当-3≤x≤0时它的最大值是____最小值是____.
二次函数y=x2+2x-5有
最大值-5
最小值-5
最大值-6
最小值-6
已知二次函数y有最大值4且图象与x轴两交点间的距离是8对称轴为x=-3求此二次函数的解析式.
二次函数y=2x2-4x+5当﹣3≤x≤4时y的最大值是最小值是.
如图二次函数y=ax2+bx+c的图象过-112-1两点.下列关于这个二次函数的叙述正确的是
当x=0时,y的值大于1
当x=3时,y的值小于0
当x=1时,y的值大于1
y的最大值小于0
如图二次函数的图像经过-2-111两点则下列关于此二次函数的说法正确的是
y的最大值小于0
当x=0时,y的值大于1
当x=-1时,y的值大于1
当x=-3时,y的值小于0
二次函数y=x2+bx+c的图象经过点4330求函数y的表达式并求出当0≤x≤3时y的最大值.
已知二次函数的图象关于直线x=3对称最大值是0与y轴的交点是0-1这个二次函数解析式为_______
关于二次函数y=x2+4x-7的最大小值叙述正确的是
当x=2时,函数有最大值
当x=2时,函数有最小值
当x=-2时,函数有最大值
当x=-2时,函数有最小值
二次函数y=-x2+mx中当x=3时函数值最大则其最大值为
.已知二次函数y=2x-32-8.1写出此函数图象的开口方向对称轴及顶点坐标2当x取何值时y随x的增
如果二次函数y=ax+32有最大值那么a
如图二次函数的图象经过﹣2﹣111两点则下列关于此二次函数的说法正确的是
y 的最大值小于 0
当 x=0 时,y 的值大于 1
当 x=﹣1 时,y 的值大于 1
当 x=﹣3 时,y 的值小于 0
如图二次函数的图像经过-2-111两点则下列关于此二次函数的说法正确的是
y的最大值小于0
当x=0时,y的值大于1
当x=-1时,y的值大于1
当x=-3时,y的值小于0
关于二次函数y=x2+4x-7的最大小值叙述正确的是
当x=2时,函数有最大值
当x=2时,函数有最小值
当x=-2时,函数有最大值
当x=-2时,函数有最小值
当-1≤x≤2时二次函数y=x2的最大值是最小值是.
已知二次函数y=-x2-2x.关于该函数在-3≤x≤0范围内下列说法正确的是
有最大值1,无最小值
有最大值1,有最小值0
有最大值1,有最小值-3
有最大值0,有最小值-3
二次函数y=﹣x2+2x+4的最大值为
3
4
5
6
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