②“三角形”先向东移2格,再向北移1格,最后再向东移2格,
画出它移动后的位置.
③“正方形”先向西移2格,再向北移4格,画出它的移动路线.
④五角星先向西南移1格,再向西移2格.
(2)观察这四个图形移动后所在的格子,完成填空.
移动后,“五角星”在“圆”的________面,在“正方形”的________面;“三角形”在“圆”的________面,在“正方形”的________面.
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