如图是他们行走的路程关于时间的函数图象,四位同学观察此函数图象得出有关信息,其中正确的个数是( )A.1 B.2 C.3 D.4 如图是小明从学校到家里行进的路程S(米) 与时间t(分) 的函数图象, 观察图象, 从中得到如下信息, 其中不正确的是()A、 学校离小明家1000米B、 小明用了 20分钟到家C、 小明前10分钟走了 路程的一半D、 小明后10分钟比前10分钟走得快 均匀地向如图所示的一个容器注水, 最后把容器注满. 在注水过程中, 能大致反映水面高度随时间变化的图像是A.B.C.D . 如图, 水以恒速(即单位时间内注入水的体积相同)注入下面四种底面积相同的容器中, 请分别找出与各容器对应的水的高度和时间的函数关系图象, 用直线段连接起来; 一列快车从甲地匀速驶往乙地, 一列慢车从乙地匀速驶往甲地, 两车同时出发, 设两车之间的距离为y, 慢车行驶的时间为x, 图中的折线表示y 与x之间的函数关系. 根据图象进行以下探究:ADy/km900900(1) 甲、 乙两地之间的距离为km;(2) 请解释图中点B的实际意义;(3) 求慢车和快车的速度;BCO12x/h4 一列快车从甲地匀速驶往乙地, 一列慢车从乙地匀速驶往甲地, 两车同时出发, 设两车之间的距离为y, 慢车行驶的时间为x, 图中的折线表示y 与x之间的函数关系. 根据图象进行以下探究:ADy/km900900(4) 求线段BC所表示的与之间的函数关系式, 并写出自变量的取值范围;关系式, 并写出自变量的取值范围;BCO12x/h4(5) 若第二列快车也从甲地出发驶往乙地, 速度与第一列快车相同. 在第一列快车与慢车相遇30分钟后, 第二列快车与慢车相遇, 求第二列快车比第一列快车晚出发多少小时? 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