SOLUTION: i need to Find the length of the segment rounded to the nearest tenth. Then Find the coordinates of the midpoint of the segment. A) (-3,3)and B(1,-8) Yurboikev12@aol.com

Algebra ->  Length-and-distance -> SOLUTION: i need to Find the length of the segment rounded to the nearest tenth. Then Find the coordinates of the midpoint of the segment. A) (-3,3)and B(1,-8) Yurboikev12@aol.com      Log On


   

Question 252712: i need to
Find the length of the segment rounded to the nearest tenth. Then Find the coordinates of the midpoint of the segment.
A) (-3,3)and B(1,-8)
Yurboikev12@aol.com
Answer by drk(1908) About Me  (Show Source):
You can put this solution on YOUR website!
We have the coordinates
A (-3,3) and B(1,-8)
to find midpoint, we need the following formula:
%28X1+%2B+X2%29%2F2 , %28Y1+%2B+Y2%29%2F2
putting in our numbers, we get
(-3 + 1)/2 , (3 + -8)/2 - -> (-1, -5/2)
To find length, we need distance formula, which is
d+=+sqrt%28%28x1-x2%29%5E2+%2B+%28y1+-y2%29%5E2%29
again putting your numbers in, we get
d+=+sqrt%28%28-3-1%29%5E2+%2B+%283-%28-8%29%29%5E2%29
d+=+sqrt%28%28-4%29%5E2+%2B+%2811%29%5E2%29
d+=+sqrt%28137%29
d ~ 11.70 ~ 11.7