Question

if the line joining A(3,3) and a point B has midpoint at origin then co-ordinate of B are? ​

Answer 1

GOOD EVENING!!

SOLUTION

the line joining A(3,3) and a point B has midpoint at origin

co-ordinate of B = ?

USING MID POINT FORMULAE

x = x1+x2 and y=y1+y2

2 2

or 0 = 3+x2 and 0 = 3+y2

2 2

or x2= -3 y2= -3

so.......co-ordinate of B = (-3,-3)