In the rectangular coordinate system shown above, points O, P, and Q represent the sites of three proposed housing developments. If a fire station can be built at any point in the coordinate system, at which point would it be equidistant from all three developments?

The diagram shows a graph where two coordinating points are given, which are, Q(4, 0) at x-axis and P(0, 6) at y-axis.

A、(3,1)
B、(1,3)
C、(3,2)
D、(2,2)
E、(2,3)

答案：E

专业教师答疑

问题：想问一下图片里这个题，怎么用几何方法做呢？就是根据直线画图的方法，代数我明白了，但是我觉得这题可以用直线描点的方法做，虽然我还没有特别想清楚，请您帮忙回答一下~

查看答疑

扫我提问哦！