(1)填一填。
长度(米) | 0 | 1 | 2 | 3 | 4 | 5 | … |
应付钱(元) | 0 | 2 |
(2)把上表中长度和应付的钱所对应的点描在下图中,并顺次连接。
(3)由图可知,( )一定,( )和( )成( )比例。
(4)奶奶有7元钱,她只能买多少米的彩带?(用比例解)
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