3 years ago

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

1 answer:

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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