(1)求直线AB的解析式;
(2)点C在BO上,∠CAO=∠ABO,点P在OA的延长线上,设P点纵坐标为m,△PAC的面积为S,求出S与m的函数关系式;
(3)在(2)的条件下,点D在x轴负半轴上,∠DPO=2∠CPO,CE⊥PD于E,CE交PO于F,若PF=OD+4,求P点坐标.
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