SOLUTION: M(-4,8) is the midpoint of line segment DE. D has coordinate (6,1) .find the E coordinate

Algebra ->  Coordinate-system -> SOLUTION: M(-4,8) is the midpoint of line segment DE. D has coordinate (6,1) .find the E coordinate      Log On


   

Question 1164763: M(-4,8) is the midpoint of line segment DE. D has coordinate (6,1) .find the E coordinate
Answer by ikleyn(52747) About Me  (Show Source):
You can put this solution on YOUR website!
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Moving from D to M, you cover  -4 - 6 = -10 units along x-axis.  Add one more time (-10) to x-coordinate of M

to get x-coordinate of E  x%5BE%5D = -4 + (-10) = -14.



Moving from D to M, you cover  8 - 1 = 7 units along y-axis.  Add one more time 7 to y-coordinate of M

to get y-coordinate of E  y%5BE%5D = 8 + 7 = 15.



Thus  E = (-14,15).       ANSWER


Solved.