The midpoint of XY is point M (-12,5) if the coordinates of x are (3,-3) what are the coordinates pf y

The midpoint of XY is point

M(�12, 5). If the coordinates

of X are (3, �3), what are the

coordinates of Y ?

Each coordinate of the midpoint is the average

of the corresponding endpoint coordinate.

Solve:

Let the coordinates of Y be (x,y)

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(3+x)/2 = -12

3+x = -24

x = -27

(-3+y)/2= 5

-3+y=10

y = 13

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Coordinates Y: (-27,13)

Cheers,

Stan H.