Question

given the midpoint of CD is (2,-1) and point c is (-2,-4) what are the coordinates of D

Answer 1

assume the coordinates of D are (x,y).
for x:
-2+x/2=2
x-2=4
x=6

for y:
-4+y/2=2
y-4=4
y=8
Therefore,(x,y)=(6,8)

Answer 2

i don't think thats right

Answer 3

well,I think its correct.

Answer 4

it multiple choice and thats not a choice

Answer 5

what are the choices??

Answer 6

(0,-2.5) (-2.5,0) (2,6) (6,2)

Answer 7

i think its 6,2

Answer 8

ohhh!!the midpoint is (2,-1)..I accidentally wrote -4+y/2=2,instead of writting -4+y/2=-1.Now calculate..

Answer 9

:) thank you soo much you rock

Answer 10

well,sorry for the mistake.:)

Answer 11

its okay