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frutty [35]
3 years ago
10

Need help with midpoint formula? Question: If the midpoint between (x, 3) and (9, 9) is (7, 6), find the value of x.

Mathematics
1 answer:
Mama L [17]3 years ago
5 0
Midpoints are quite simple really the midpoint of (x2,y2) to (x1,y1) is just the average of the coordinates...

((x1+x2)/2, (y1+y2)/2)  in this case you are only given one point and the midpoint and you really looking for the other endpoint so...

And we are only concerned with the x value so:

(x+9)/2=7

x+9=14

x=5


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