(1)求反比例函数的表达式及点的坐标;
(2)过点作直线,交反比例函数图象于另一点,连接,当线段被轴分成长度比为的两部分时,求的长;
(3)我们把有两个内角是直角,且一条对角线垂直平分另一条对角线的四边形称为“完美筝形”.设是第三象限内的反比例函数图象上一点,是平面内一点,当四边形是完美筝形时,求,两点的坐标.
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2