Answers

2014-10-29T15:29:10+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Perpendicular bisector of AB is x-y+5=0 or y=x+5
its slope = 1
so slope of AB = -1
equation of line with slope -1 is y=-x+c

AB passes through (1,-2)
thus, -2=-1+c
⇒c = -1
Equation of AB : y=-x-1 or x+y+1=0
Intersection of both the lines is the mid point of AB.
x-y+5 = 0
x+y+1 = 0
solving, we the point of intersection as (-3,2)

let point B is (m,n)
(m+1)/2=-3 
⇒ m = -7
(n-2)/2=2
⇒ n = 6

Point B is (-7,6)


0