配套习题- 如何解决一次函数中存在型问题 -【青果学院】

1/5单选题

难度：

1.如图，在平面直角坐标系xOy中，分别平行x、y轴的两直线a、b相交于点A（3，4），连接OA，若在直线a上存在点P，使△AOP是等腰三角形，那么所有满足条件的点P的坐标是（　　）

A	（8，4）
B	（8，4）或（-3，4）
C	（8，4）或（-3，4）或（-2，4）
D	（8，4）或（-3，4）或（-2，4）或（−，4）

正确答案：RA==

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

2/5单选题

难度：

2.已知一次函数y=ax+b的图象过（0，2）点，它与坐标轴围成的图形是等腰直角三角形，则a的值为（　　）

A	±1
B	1
C
D	不确定

正确答案：QQ==

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

3/5单选题

难度：

3.已知直线y=x上有两点A（1，1），B（3，3），在y轴上存在一点P，它到点A，B的距离之和最小，则点P的纵坐标是（　　）

A	1
B
C	2
D

正确答案：Qg==

6Kej77ya54K5QeWFs+S6jnnovbTnmoTlr7nnp7DngrlB4oCy5Li677yILTHvvIwx77yJ77yM6K6+6L+HQeKAskLnmoTop6PmnpDlvI/kuLp5PWt4K2I8YnI+5YiZLWsrYj0x77yMM2srYj0zPGJyPuino+W+l2s9MC4177yMYj0xLjU8YnI+6YKj5LmI5q2k5Ye95pWw6Kej5p6Q5byP5Li6eT0wLjV4KzEuNe+8jOS4jnnovbTnmoTkuqTngrnmmK/vvIgw77yMMC4177yJ77yM5q2k54K55bCx5piv5omA5rGC55qE54K5UC4gPGJyPuaVhemAiUIuIA==

4/5单选题

难度：

4.一次函数y=

x+4分别交x轴、y轴于A、B两点，在x轴上取一点C，使△ABC为等腰三角形，则这样的点C最多有（　　）

A	1个
B	2个
C	3个
D	4个

正确答案：RA==

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

5/5单选题

难度：

5.如果一次函数y=-x+1的图象与x轴、y轴分别交于点A点、B点，点M在x轴上，并且使以点A、B、M为顶点的三角形是等腰三角形，那么这样的点M有（　　）

A	3个
B	4个
C	5个
D	7个

正确答案：Qg==

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