Question

The mid point of point M(4,1) and N(x,y) is (2, -4). Find the coordinates of N.

Answer 1

If r and s are positive numbers, what are the coordinates of the midpoint of line segment MN in the xy-plane?

(1) The coordinates of M are (r; 3 - s).

(2) The coordinates of N are (3 - r; s).

like it

Answer 2

Answer:

4+x , 1+y =2,-4

2 2

4+x =2

2

4+x=2×2

x=4-4=0

x=0

1+y =-4

2

1+y= -4×2

y=-8-1=

y= -9

N(0,-9)