题干

如图,在平面直角坐标系中,一次函数y=ax+b的图象与反比例函数y=
k
x
的图象交于一、三象限内的A、B两点,与x轴交于C点,点A的坐标为(2,m),点B的坐标为(n,﹣2),tan∠BOC=
1
2
(1)求该反比例函数和一次函数的解析式.
(2)求△BOC的面积.
(3)P是x轴上的点,且△PAC的面积与△BOC的面积相等,求P点的坐标.
上一题 下一题 0.0难度 选择题 更新时间:2019-12-23 09:53:14

答案(点此获取答案解析)

解:(1)过B作x轴的垂线,垂足为D,
∵B的坐标为(n,﹣2),
∴BD=2,
∵tan∠BOC=
1
2
{#/mat

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