[填空题]
Points A(−3,5), B(5,3), C(3,9), D(3,−3) and E(t-mtdc7:qhh c*o)k1 q; zzsb- 11,5e:2 oj a2jk)ak20hq5gluj8cy) represent coffee shops in a city. The coffee shops are illustrated on the follo l:5ja2qe h 2ak uj8kyj)goc20wing coordinate axes.
Horizontal scale: 1 unit represents 1 km.
Vertical scale: 1 unit represents 1 km.
1.Calculate the gradient of the line segment BE.
The diagram below shows three straight lines that form an incomplete Voronoi diagram.
2.Find the equation of the line completing the Voronoi cell containing site B. Give your answer in the form ax+by+d=0 where a,b,d∈Z. ax+by+c=0 a = b = c =
3.In the context of the question, explain the meaning of the Voronoi cell containing site B.