Respuesta :

Answer:

cordinates of R(7,9)

Explanation:

Step by step

Let R(p,q)

M(x,y)=(8,7

S(r,s)=(9,5)

then,

x=(p+r)/2

or, 8= (p+9)/2

or p+9= 16

: p= 7

Again,

y= (q+r)/2

or, 7= (q+ 5)/2

or,14 =q + 5

or, q=14-5

:q = 9

So

The coordinates of R is R(7,9)###

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