年份 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 |
城镇居民家庭人均收入/元 | 10560 | 11520 | 15600 | 21360 | 24600 | 30720 |
农村居民家庭人均收入/元 | 7200 | 9000 | 10800 | 12480 | 18000 | 21000 |
(1)将上面的折线统计图补充完整.
(2)你从两条折线的变化趋势中,获得了哪些信息?
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