12. the midpoint of CD is E(-1,0) one endpoint is C (5,2). What are the coordinates of the other endpoint?
9 answers
I really need help!
as with the single dimension, the coordinates of the midpoint of a line in the plane is the average of each coordinate:
((-1+5)/2 , (0+2)/2) = (2,1)
((-1+5)/2 , (0+2)/2) = (2,1)
thanks!
this is 2019 steve is wrong i don't know the true answer tho
brainly . com/ question/ 1462721
Answer is D = (-7,-2)
i know the answer is (-7,-2) but how did u get that??
wait no steve was right
midpoint = (x1+x2 / 2 , y1+y2 / 2)
5 + x2 / 2 = -1
5 + x2 = -2
x2 = -7
2 + y2 / 2 = 0
2 + y2 = 0
y2 = -2
Other endpoint: (-7, -2)
5 + x2 / 2 = -1
5 + x2 = -2
x2 = -7
2 + y2 / 2 = 0
2 + y2 = 0
y2 = -2
Other endpoint: (-7, -2)
2 answers