时间/分 | 1 | 2 | 3 | 4 | 5 | 6 | … |
路程/千米 | 7 | 14 | 21 | 28 | 35 | 42 | … |
(1) 图中的点A表示时间为1分时,高铁列车驶过的路程为7千米.请你试着描出其他各点.
(2) 连接各点.他们在一条直线上吗?
(3) 列车运行8分钟时,行驶的路程是多少?
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