求过点A(-3,-2)且与两定点M(2,3)N(4,-5)距离相等的直线方程
问题描述:
求过点A(-3,-2)且与两定点M(2,3)N(4,-5)距离相等的直线方程
答
M(2,3),N(4,-5)
xB=(xM+xN)/2=(2+4)/2=3
yB=(yM+yN)/2=(3-5)/2=-1
B(3,1)
k(AB)=1/2
AB:x-2y-1=0