如果点A(1,m)在连接点B(-1,-5)和C(3,3)的线段上,则m=

问题描述:

如果点A(1,m)在连接点B(-1,-5)和C(3,3)的线段上,则m=

m=(-5+3)/2=1

(3-m)/(3-1)=(3-(-5))/(3-(-1))
m=-1