配套习题-二次函数的图像和性质（2） -【青果学院】

本课配套习题挑战模式1/5

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单选题

难度系数：

1.二次函数y=ax²+bx（ab≠0）和y=bx²-ax（ab≠0）的图象可能是（　　）

A:

B:

C:

D:

提示1：5qC55o2u5Lik5Liq5LqM5qyh5Ye95pWw55qE5a+556ew6L205LiA5q2j5LiA6LSf6Kej562U77yO
答案：QQ==
6Kej77ya5Lik5Ye95pWw55qE5a+556ew6L205YiG5Yir5Li655u057q/eD0tPGltZyB3aWR0aD0xNCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC84Mi8yMS9yQkFDSjFWMDllX0E0dnp6QUFBQmJvbWR0cTg0NjYucG5nIj7lkoznm7Tnur94PS08aW1nIHdpZHRoPTE1IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzgyLzIxL3JCQUNKMVYwOWVfQmdoSm1BQUFCV2hMbmhDZzY0Mi5wbmciPj08aW1nIHdpZHRoPTE0IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0I3L0E0L3JCQUNFMVYwOWUteklTNVhBQUFCWjBlN204bzQ1NS5wbmciPjxicj7iiLVhYuKJoDDvvIw8YnI+4oi05Lik5Ye95pWw5Zu+6LGh55qEIOWvueensOi9tOS4gOato+S4gOi0n++8jDxicj7nurXop4LlkITpgInpobnvvIzlj6rmnIlB6YCJ6aG55Zu+6LGh56ym5ZCI77yOPGJyPuaVhemAiUHvvI4=

本课配套习题挑战模式2/5

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单选题

难度系数：

2.在同一坐标系中，抛物线y=4x²，y=

x²，y=-

x²的共同特点是（　　）

A: 关于y轴对称，开口向上

B: 关于y轴对称，y随x的增大而增大

C: 关于y轴对称，y随x的增大而减小

D: 关于y轴对称，顶点是原点

提示1：5b2i5aaCeT1heDxzdXA+Mjwvc3VwPueahOaKm+eJqee6v+WFseWQjOeJueeCueWwseaYr++8muWFs+S6jnnovbTlr7nnp7DvvIzpobbngrnmmK/ljp/ngrnvvIxh5q2j6LSf5oCn5Yaz5a6a5byA5Y+j5pa55ZCR77yOYeeahOe7neWvueWAvOWkp+Wwj+WGs+WumuW8gOWPo+eahOWkp+Wwj++8jg==
答案：RA==
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

本课配套习题挑战模式3/5

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单选题

难度系数：

3.二次函数y=ax²+x+a²-1的图象可能是（　　）

A:

B:

C:

D:

提示1：5bCG5LqM5qyh5Ye95pWweT1heDxzdXA+Mjwvc3VwPit4K2E8c3VwPjI8L3N1cD4tMee7k+WQiOWQhOmAiemhueS4ree7meWHuueahOWbvuixoe+8jOagueaNruaAp+i0qOi/m+ihjOWIpOaWre+8jOmAieWHuuespuWQiOeahOmAiemhue+8jg==
答案：Qw==
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

本课配套习题挑战模式4/5

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单选题

难度系数：

4.二次函数y=ax²+bx+c的图象如图所示，则下列结论中错误的是（　　）青果学院

A: 函数有最小值

B: 当-1＜x＜2时，y＞0

C: a+b+c＜0

D: 当x＜，y随x的增大而减小

提示1：QeOAgeinguWvn+WPr+WIpOaWreWHveaVsOacieacgOWwj+WAvO+8m0LjgIHnlLHmipvniannur/lj6/nn6XlvZMtMe+8nHjvvJwy5pe277yM5Y+v5Yik5pat5Ye95pWw5YC855qE56ym5Y+377ybQ+OAgeinguWvn+W9k3g9MeaXtu+8jOWHveaVsOWAvOeahOespuWPt++8jOWPr+WIpOaWrWErYitj55qE56ym5Y+377ybROOAgeeUseaKm+eJqee6v+WvueensOi9tOWSjOW8gOWPo+aWueWQkeWPr+efpXnpmo9455qE5aKe5aSn6ICM5YeP5bCP77yM5Y+v5Yik5pat57uT6K6677yO
答案：Qg==
6Kej77yaQeOAgeeUseWbvuixoeWPr+efpeWHveaVsOacieacgOWwj+WAvO+8jOaVheato+ehru+8mzxicj5C44CB55Sx5oqb54mp57q/5Y+v55+l5b2TLTHvvJx477ycMuaXtu+8jHnvvJww77yM5pWF6ZSZ6K+v77ybPGJyPkPjgIHlvZN4PTHml7bvvIx577ycMO+8jOWNs2ErYitj77ycMO+8jOaVheato+ehru+8mzxicj5E44CB55Sx5Zu+6LGh5Y+v55+l5Zyo5a+556ew6L2055qE5bem5L6neemaj3jnmoTlop7lpKfogIzlh4/lsI/vvIzmlYXmraPnoa7vvI48YnI+5pWF6YCJQu+8jg==

本课配套习题挑战模式5/5

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单选题

难度系数：

5.将二次函数y=x²-2x+3的图象先向左平移1个单位，再向下平移2个单位，平移后得到的图象的函数关系式为（　　）

A: y=（x-1）²

B: y=x²+4

C: y=x²

D: y=（x-1）²+2

提示1：5YWI6L+Q55So6YWN5pa55rOV5bCGeT14PHN1cD4yPC9zdXA+LTJ4KzPlhpnmiJDpobbngrnlvI/vvIzlho3moLnmja7igJzkuIrliqDkuIvlh4/vvIzlt6bliqDlj7Plh4/igJ3nmoTljp/liJnov5vooYzop6PnrZTljbPlj6/vvI4=
答案：Qw==
6Kej77ya4oi1eT14PHN1cD4yPC9zdXA+LTJ4KzM977yIeC0x77yJPHN1cD4yPC9zdXA+KzLvvIw8YnI+4oi05bCG5LqM5qyh5Ye95pWweT14PHN1cD4yPC9zdXA+LTJ4KzPnmoTlm77osaHlhYjlkJHlt6blubPnp7sx5Liq5Y2V5L2N77yM5YaN5ZCR5LiL5bmz56e7MuS4quWNleS9je+8jOW+l+WIsOeahOWbvuixoeihqOi+vuW8j+S4ujxicj55Pe+8iHgtMSsx77yJPHN1cD4yPC9zdXA+KzItMu+8jOWNs3k9eDxzdXA+Mjwvc3VwPu+8jjxicj7mlYXpgIlD77yO

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本课配套习题挑战模式1/5

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本课配套习题挑战模式3/5

本课配套习题挑战模式4/5

本课配套习题挑战模式5/5

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