SOLUTION: A map of the town that Annie and Barbara live in can be represented by the Cartesian plane. Annie is located at (3,5) and Barbara says she is located at (-6,2). They agree to meet

Algebra ->  Coordinate-system -> SOLUTION: A map of the town that Annie and Barbara live in can be represented by the Cartesian plane. Annie is located at (3,5) and Barbara says she is located at (-6,2). They agree to meet       Log On


   

Question 1068659: A map of the town that Annie and Barbara live in can be represented by the Cartesian plane. Annie is located at (3,5) and Barbara says she is located at (-6,2). They agree to meet the midpoint of their current locations. However, it turns out that Barbara read the map wrong, and she is actually at (-10,4). What is the positive difference in the x-coordinates of where they agreed to meet and where they should actually meet?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Find the midpoints for each case:
Incorrect:(3,5) and (-6,2)
x%5Bm1%5D=%283-6%29%2F2=-3%2F2
y%5Bm1%5D=%285%2B2%29%2F2=7%2F2
Correct:(3,5) and (-10,4)
x%5Bm2%5D=%283-10%29%2F2=-7%2F2
y%5Bm2%5D=%285%2B4%29%2F2=9%2F2
So the difference in x coordinates is,
dx=-3%2F2-%28-7%2F2%29=-3%2F2%2B7%2F2=4%2F2=2