中学生网络课堂
初三数学 (北师版)
二次函数综合
本课配套习题挑战模式1/5
单选题
难度系数：
1.如图，△ABC是直角三角形，∠A=90°，AB=8cm，AC=6cm点P从点A出发，沿AB方向以2cm/s的速度向点B运动；同时点Q从点A出发， 沿AC方向以1cm/s的速度向点C运动，其中一个动点到达终点，则另一个动点也停止运动，则三角形APQ的最大面积是（ ）
| A: 8cm2 |
| B: 16cm2 |
| C: 24cm2 |
| D: 32cm2 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOiuvue7j+i/h3Rz6L+Q5Yqo5YGc5q2i77yM5YiX5Ye66Z2i56ev5LiOdOS5i+mXtOeahOWHveaVsOWFs+ezu+W8jy4=
- 答案：Qg==
6Kej77ya5qC55o2u6aKY5oSPPGJyPuayv0FC5pa55ZCR5LulMmNtL3PnmoTpgJ/luqblkJHngrlC6L+Q5Yqo77yb5ZCM5pe254K5UeS7jueCuUHlh7rlj5HvvIzmsr9BQ+aWueWQkeS7pTFjbS9z55qE6YCf5bqm5ZCR54K5Q+i/kOWKqO+8jDxicj7iiLRBUD0ydO+8jEFRPXTvvIw8YnI+UzxzdWI+4pazQVBRPC9zdWI+PXQ8c3VwPjI8L3N1cD7vvIw8YnI+4oi1MO+8nHTiiaQ077yMPGJyPuKItOS4ieinkuW9okFQUeeahOacgOWkp+mdouenr+aYrzE2LiA8YnI+5pWF6YCJQi4g
本课配套习题挑战模式2/5
单选题
难度系数：
2.如图（1）所示，E为矩形ABCD的边AD上一点，动点P、Q同时从点B出发，点P沿折线BE-ED-DC运动到点C时停止，点Q沿BC运动到点C时停止，它们运动的速度都是1cm/秒. 设P、Q同时出发t秒时，△BPQ的面积为ycm2. 已知y与t的函数关系图象如图（2）（曲线OM为抛物线的一部分）. 则下列结论错误的是（ ）
| A: AD=BE=5cm |
B: cos∠ABE= |
C: 当0＜t≤5时，y＝ t2 |
D: 当t＝ 秒时，△ABE∽△QBP |
一次做对，真牛！
+5奖励规则>
- 提示1：IOagueaNruWbvu+8iDLvvInlj6/ku6XliKTmlq3kuInop5LlvaLnmoTpnaLnp6/lj5jljJbliIbkuLrkuInmrrXvvIzlj6/ku6XliKTmlq3lh7rlvZPngrlQ5Yiw6L6+54K5ReaXtueCuVHliLDovr7ngrlD77yM5LuO6ICM5b6X5YiwQkPjgIFCReeahOmVv+W6pg==
- 提示2：IOWGjeagueaNrk3jgIFO5piv5LuONeenkuWIsDfnp5LvvIzlj6/lvpdFROeahOmVv+W6pu+8jOeEtuWQjuihqOekuuWHukFF55qE6ZW/5bqm77yM5qC55o2u5Yu+6IKh5a6a55CG5rGC5Ye6QULnmoTplb/luqbvvIznhLblkI7pkojlr7nlkITlsI/popjliIbmnpDop6PnrZTljbPlj68=
- 答案：Qg==
6Kej77ya5qC55o2u5Zu+77yIMu+8ieWPr+W+l++8jOW9k+eCuVDliLDovr7ngrlF5pe254K5UeWIsOi+vueCuUPvvIw8aW1nIHdpZHRoPTMyNCBoZWlnaHQ9MTQ1IHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvOUIvckJBQ0ZGT1ZnSUhqVmhnakFBQXNaRDRrNVJzNjU5LnBuZyIgPjxicj7iiLXngrlQ44CBUeeahOi/kOWKqOeahOmAn+W6pumDveaYrzFjbS/np5LvvIw8YnI+4oi0QkM9QkU9Ne+8jDxicj7iiLRBRD1CRT0177yM5pWFQemAiemhueato+ehru+8mzxicj7lj4jiiLXku45N5YiwTueahOWPmOWMluaYrzLvvIw8YnI+4oi0RUQ9Mu+8jDxicj7iiLRBRT1BRC1FRD01LTI9M++8jDxicj7lnKhSdOKWs0FCReS4re+8jEFCPTxpbWcgd2lkdGg9MTk4IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzlFL0IzL3JCQUNFMU9WZ0lHVFB1dEpBQUFESmtod0FQSTA0My5wbmciPjx0YWJsZSBjbGFzcz1Nc29Ob3JtYWxUYWJsZSBib3JkZXI9MCBjZWxsc3BhY2luZz0wIGNlbGxwYWRkaW5nPTAgc3R5bGU9J2JvcmRlci1jb2xsYXBzZTpjb2xsYXBzZSc+IDx0cj4gIDx0ZCBzdHlsZT0ncGFkZGluZzotLjc1cHQgLS43NXB0IC0uNzVwdCAtLjc1cHQnPjwvdGQ+ICA8dGQgc3R5bGU9J2JvcmRlcjpub25lO2JvcmRlci10b3A6c29saWQgYmxhY2sgMS4wcHQ7cGFkZGluZzouNzVwdCAwY20gMGNtIDEuNXB0Jz48L3RkPiA8L3RyPjwvdGFibGU+4oi0Y29z4oigQUJFPTxpbWcgd2lkdGg9MzggaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvOUUvQjMvckJBQ0UxT1ZnSUdUWWNNYUFBQUIyRWVwQ3lzODk2LnBuZyI+77yM5pWFQumAiemhuemUmeivr++8mzxicj7lpoLlm77vvIgx77yJ6L+H54K5UOS9nFBG4oqlQkPkuo7ngrlG77yMPGJyPuKItUFE4oilQkPvvIw8aW1nIHdpZHRoPTE2MCBoZWlnaHQ9MTAxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvOUIvckJBQ0ZGT1ZnSUd6UDMwQUFBQVJIRWhkZG1JMjkzLnBuZyIgPjxicj7iiLTiiKBBRUI94oigUEJG77yMPGJyPuKItHNpbuKIoFBCRj1zaW7iiKBBRUI9PGltZyB3aWR0aD0zOCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC82Mi85Qi9yQkFDRkZPVmdJSEE0OHd0QUFBQjJDUEhnRGs0OTMucG5nIj48YnI+4oi0UEY9UEJzaW7iiKBQQkY9PGltZyB3aWR0aD0xNCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC85RS9CMy9yQkFDRTFPVmdJR3gxWGQ2QUFBQmJCV3ptYmM5MDUucG5nIj48YnI+4oi05b2TMO+8nHTiiaQ15pe277yMeT08aW1nIHdpZHRoPTYgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvOUUvQjMvckJBQ0UxT1ZnSUhSVE9wVUFBQUJIQjBuQ25BNzY5LnBuZyI+QlEmIzgyMjY7UEY9PGltZyB3aWR0aD02IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzlFL0IzL3JCQUNFMU9WZ0lIUlRPcFVBQUFCSEIwbkNuQTc2OS5wbmciPnQ8aW1nIHdpZHRoPTEyIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzYyLzlCL3JCQUNGRk9WZ0lHekFCQmpBQUFCUkItNUotQTk3OS5wbmciPnQ9PGltZyB3aWR0aD02IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzYyLzlCL3JCQUNGRk9WZ0lIU2dmbnhBQUFCSFFURzVKZzc3NS5wbmciPnQ8c3VwPjI8L3N1cD7vvIzmlYVD6YCJ6aG55q2j56Gu77ybPGJyPjxicj7lvZN077ydPGltZyB3aWR0aD0xMSBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC85RS9CMy9yQkFDRTFPVmdJR0JRRFljQUFBQldsaUxRWDQ3MDQucG5nIj7np5Lml7bvvIzngrlQ5ZyoQ0TkuIrvvIzmraTml7bvvIxQRD08aW1nIHdpZHRoPTExIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzlFL0IzL3JCQUNFMU9WZ0lHQlFEWWNBQUFCV2xpTFFYNDcwNC5wbmciPi1CRS1FRD08aW1nIHdpZHRoPTExIGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzlFL0IzL3JCQUNFMU9WZ0lHQlFEWWNBQUFCV2xpTFFYNDcwNC5wbmciPi01LTI9PGltZyB3aWR0aD02IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzYyLzlCL3JCQUNGRk9WZ0lIQWhNZ3FBQUFCS1hoWkREZzMyNy5wbmciPjxicj5QUT1DRC1QRD00LTxpbWcgd2lkdGg9NiBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC82Mi85Qi9yQkFDRkZPVmdJSEFoTWdxQUFBQktYaFpERGczMjcucG5nIj49PGltZyB3aWR0aD0xMiBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC85RS9CMy9yQkFDRTFPVmdJSGkzb2Q3QUFBQlZGSDlLczAyMjgucG5nIj48YnI+4oi1PGltZyB3aWR0aD0zOCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC85RS9CMy9yQkFDRTFPVmdJR2gwTWJXQUFBQnppLXhCXzA0MzYucG5nIj7vvIw8aW1nIHdpZHRoPTE0IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzlCL3JCQUNGRk9WZ0lLaHdsbFhBQUFCVldkYko5VTc2OS5wbmciPj08aW1nIHdpZHRoPTYgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOUUvQjMvckJBQ0UxT1ZnSUt5c2tYVEFBQUJNQW1uRDdBNjY4LnBuZyI+77yMPGJyPuKItDxpbWcgd2lkdGg9MTQgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvOUIvckJBQ0ZGT1ZnSUxDblFXMkFBQUJZRWxSNVBRNDE2LnBuZyI+PTxpbWcgd2lkdGg9MTQgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvOUIvckJBQ0ZGT1ZnSUtod2xsWEFBQUJWV2RiSjlVNzY5LnBuZyI+PGJyPuWPiOKIteKIoEE94oigUT05MMKw77yMPGJyPuKItOKWs0FCReKIveKWs1FCUO+8jOaVhUTpgInpobnmraPnoa4uIDxicj7mlYXpgIlCLiA8YnI+
本课配套习题挑战模式3/5
单选题
难度系数：
3.抛物线y=x2-2x-15，y=4x-23，交于A、B点（A在B的左侧），动点P从A点出发，先到达抛物线的对称轴上的某点E再到达x轴上的某点F，最后运动到点B. 若使点P动的总路径最短，则点P运动的总路径的长为（ ）
A: 10 |
B:  |
C: 5 |
D: 8 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOmmluWFiOagueaNrumimOaEj+axguW+l+eCuUHkuI5C55qE5Z2Q5qCH77yM5rGC5b6X5oqb54mp57q/55qE5a+556ew6L20
- 提示2：IOeEtuWQjuS9nOeCuUHlhbPkuo7mipvniannur/nmoTlr7nnp7DovbR4PTHnmoTlr7nnp7DngrlB4oCy77yM5L2c54K5QuWFs+S6jnjovbTnmoTlr7nnp7DngrlC4oCy77yM6L+e5o6lQeKAskLigLLvvIzliJnnm7Tnur9B4oCyQuKAsuS4juebtOe6v3g9MeeahOS6pOeCueaYr0XvvIzkuI546L2055qE5Lqk54K55pivRu+8jOiAjOS4lOaYk+W+l0HigLJC4oCy5Y2z5piv5omA5rGC55qE6ZW/5bqmLg==
- 答案：QQ==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.二次函数y=x2-8x+15的图象与x轴相交于M，N两点，点P在该函数的图象上运动，能使△PMN的面积等于
的点P共有（ ）
的点P共有（ ） | A: 1个 |
| B: 2个 |
| C: 3个 |
| D: 4个 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOeUsemimOWPr+axguWHuk1O55qE6ZW/77yM5Y2z4pazTU5Q55qE5bqV6L655bey55+l77yM6KaB5rGC6Z2i56ev5Li6PGltZyB3aWR0aD02IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzlFL0IzL3JCQUNFMU9WZ0lIUlRPcFVBQUFCSEIwbkNuQTc2OS5wbmciPu+8jOmCo+S5iOagueaNrumdouenr+WNs+WPr+axguWHuumrmO+8jOWPquimgeaKiuebuOW6lOeahHnlgLzku6PlhaXljbPlj6/op6PnrZQu
- 答案：RA==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.二次函数y=-x2+2x+8的图象与x轴交于B，C两点，点D平分BC，若在x轴上侧的A点为抛物线上的动点，且∠BAC为锐角，则AD的取值范围是（ ）
| A: 3＜AD≤9 |
| B: 3≤AD≤9 |
| C: 4＜AD≤10 |
| D: 3≤AD≤8 |
一次做对，真牛！
+5奖励规则>
- 提示1：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
- 答案：QQ==
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