Question

2. M(6, 6) is the midpoint of mc139-1.jpg. The coordinates of S are (8, 9). What are the coordinates of R?


(10, 12)
(2.5, 4)
(7, 7.5)
(4, 3)

@Ms-Brains

Answer 1

@Ms-Brains

Answer 2

I am think that it is (4,3)

Answer 3

thinking*

Answer 4

how did you get that?

Answer 5

Gimme a sec to solve it.

Answer 6

okay

Answer 7

The formula for the midpoint is..

midpoint = ((x + x1)/2, (y + y1)/2)

Since M(6,6) is the mipoint, and S(8,9) is the endpoint...

(6,6) = ((x + 8)/2, (y + 9)/2)

6 = (x + 8)/2
12 = x + 8
x = 4

6 = (y + 9)/2
12 = y + 9
y = 3

Hence, the coordinates of R is (4,3) in terms of (x,y)

Sources: https://answers.yahoo.com/question/index?qid=20110705075101AAluKCd

Answer 8

oh okay!!! soyou would just find x an y with the formula?