行驶路程/km | 15 | 30 | 45 | 75 |
耗油量/L | 2 | 4 | 6 | 10 |
①根据表中的数据,在图中描出行驶路程和耗油量对应的点.并把它们按顺序连接起来,从图表中可以看出,这辆汽车所行路程与耗油量成 比例关系.
②先利用图象估计一下,这辆汽车行驶55km的耗油量约是 升,再用比例的知识解答.
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