喷水量 (万立方米) | 16 | 32 | 48 | 64 | 96 | … |
喷水天数 (天) | 1 | 2 | 3 | 4 | 6 | … |
(1)表中喷水量和喷水天数成正比例吗?为什么?
(2)在图中描出表示喷水量和对应的喷水天数的点,然后顺次连接起来.

(3)利用图像判断5天的喷水量是多少?

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

