SOLUTION: give the points E(3,y) and F(x,-9). point G(3,4) moves such that it is the mid-point of the line joining E(3,y) and F(X,-9),find the values of x and y

Algebra ->  Length-and-distance -> SOLUTION: give the points E(3,y) and F(x,-9). point G(3,4) moves such that it is the mid-point of the line joining E(3,y) and F(X,-9),find the values of x and y       Log On


   

Question 986926: give the points E(3,y) and F(x,-9). point G(3,4) moves such that it is the mid-point of the line joining E(3,y) and F(X,-9),find the values of x and y
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
The midpoint is the average of the x and y values of the endpoints.
x%5Bm%5D=%283%2Bx%29%2F2=3
3%2Bx=6
x=3
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y%5Bm%5D=%28y-9%29%2F2=4
y-9=8
y=17
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