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Midpoint

ACTMAT-KY4CXV

$ {\overline{AB}} $ lies in the x-y coordinate plane, with point A at $(3,5)$ and point B at $(-9,11).$

What are the coordinates of the midpoint of $ {\overline{AB}} $?

A

$(-6,16)$

B

$(-6,3)$

C

$(-3,-6)$

D

$(-3,8)$

E

$(6,3)$