Question

ab is diameter of circle with centre c .If the coordinates of A(-7,3) and B(5,9) find coordinate of c​

Answer 1

As ‘C’ mid point of AB

-2 = (3 + x)/2 [∵ mid point formula]

Or - 4 = 3 + x

x = - 7

and 5 = (-7 + y)/2

and 10 = - 7 + y

and y = 17

∴ B(- 7, 17).