Find Coordinates of the Missing Point.

[greatwhiteshark]

Point M is the midpoint between the points P and Q. Find the coordinates of the missing point.

P ( 9 , 11 )


M ( 6 , 9/2)

 

[Guest]

Let Q = (x, y). The Midpoint Formula says:

. . . . (6, 9/2) = ((9 + x) / 2, (11 + y) / 2)

 

[greatwhiteshark]

ok

I need to find x and y, right?

 

[Guest]

I started with "Let Q = (x, y)". So x and y are the coordinates of Q. You need to find the coordinates of Q.