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高中数学必修1(北师大版)第121页的问题3是:如图,在一条弯曲的河道上,设置了6个水文监测站.现在需要在河边建一个情报中心,从各监测站河边分别向情报中心铺设专用通讯电缆,怎样刻画专用通讯电缆的总长度?解:情报中心在河边的位置一旦确定,每一个水文监测站到情报中心的通讯光缆长度(曲线段长度)就唯一确定了,因此,表示情报中心的数值与专用通讯电缆的总长度就构成了一个函数关系.
Question 3 on page 121 of the High School Mathematics Compulsory 1 (Beijing Normal University Edition): As shown in the figure, six hydrological monitoring stations are set up on a curved channel, and now it is necessary to build an information center near the river, How to characterize the total length of the dedicated communication cable? Solution: Once the location of the intelligence center at the river has been established, the length of each communication channel (curve length) of each hydrological monitoring station to the intelligence center is The only one identified, therefore, is that the value of the intelligence center is a function of the total length of the private communications cable.