Question

The midpoint of UV is (5,-11) the coordinates of one endpoint are U(3,5). Find the coordinates of endpoint V.

Answer 1

@3mar

Answer 2

Would it be (7,-27)

Answer 3

First off, I love your username, second, the midpoint formula is (x1 + x2)/2 and
(y1 + y2)/2

Since you have one point, just work it backwards.

x = (x1 + x2)/2
5 = (3 + x)/2 <-- multiply both sides by 2
10 = 3 + x <-- Subtract 3 from both sides
x = 7

and now for y,

11 = (5 + y)/ 2 <--- repeat steps, multiply by 2
22 = 5 + y <-- Subtract 5
17 = 7

So the other endpoint is (7, 17)

Answer 4

Your answer, sister, is correct.

Answer 5

(7,-27)

Answer 6

and check this for being sure.

Answer 7

It's a -11 not 11 for the y part of the midpoint

Answer 8

I did this
-11 = (5 + y)/ 2 <--- multiply by 2
-22 = 5 + y <-- Subtract 5
-27=y

Answer 9

Okay, forgive me for missing the negative. Yes, you are correct!

Answer 10

Nice point, you are up!

Answer 11

Thanks for catching me @3mar

Answer 12

Thank you guys so much

Answer 13

We are in the same place, brother!
Be always at the top!

Answer 14

and thanks for the medal!