Question

AB is a diameter of a circle C(-1,6). If the coordinates of A are(-7,6), find the coordinates of B.​

Answer 1

Answer:

Let,

the centre of the circle be point C(-1,6)

since AB is the diameter

then C is the midpoint of AB

x coordinate of C = x1+x2/2

y coordinate of C = y1+y2/2

where, x1=x, y1=y

x2= -7, y2=6

x coordinate of C = x+(-7)/2

-1=x+(-7)\2

-1×2=x+(-7)

-2=x+(-7)

-2+7=x

5=x

y coordinate of C = y+6/2

6=y+6/2

6×2=y+6

12=y+6

12-6=y

6=y

. ° . coordinate of B (5,6)

Write it down in your copy then you'll understand, And I hope that this is the answer.