(1)如图,直接写出二次函数的关联正方形顶点的坐标______,并验证点是否为伴随点______(填“是”或“否”);
(2)当二次函数的关联正方形的顶点与位于轴的两侧时,请解答下列问题:
①当关联正方形的顶点是伴随点时,求关联函数的解析式;
②关联正方形被二次函数图象的对称轴分成的两部分的面积分别为与,若,请直接写出的取值范围.
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