(1)抛物线的解析式为: ;
(2)如图,抛物线与轴正半轴交于点A,直线经过点,交抛物线于另一点在抛物线上是否存在点,使得?若存在,求出点的坐标;若不存在,请说明理由;
(3)如图,的顶点、在抛物线上,点在点右边,两条直线、与抛物线均有唯一公共点,、均与轴不平行若的面积为,设、两点的横坐标分别为、,求与的数量关系.
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