(1)求直线的解析式;
(2)延长交直线于点E,连接,连接,为的中线,设点E的横坐标为t,的面积为S,当点G在线段上时,求S与t之间的函数关系式(不要求写自变量t的取值范围);
(3)如图2,在(2)的条件下,作交于点F,M是线段上一点,连接、,作交于点N,作垂足为P交于点Q,若,,求直线的解析式.
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