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Nadya [2.5K]
1 year ago
5

The midpoint of MN is point P at (–4, 6). If point M is at (8, –2), what are the coordinates of point N?

Mathematics
2 answers:
tester [92]1 year ago
8 0
The midpoint of a line segment is the average of the endpoint's coordinates, mathematically:

mp=((x1+x2)/2, (y1+y2)/2)

In this case:

(-4,6)=((8+x)/2, (-2+y)/2)

(-8,12)=((8+x),(y-2))

(-16, 14)=(x,y)
Simora [160]1 year ago
4 0

Answer:  (-16, 14)

Step-by-step explanation:

We know that the coordinates of mid point of a line segment having end points (a,b) and (m,n) is given by :-

x=\dfrac{a+m}{2}\ \ ,\ \ y=\dfrac{b+n}{2}

Given : The midpoint of MN is point P at (-4, 6). If point M is at (8, -2).

Let the coordinates of N be (a,b).

Then by using the above formula, we have

-4=\dfrac{8+a}{2}\ \ ,\ \ 6=\dfrac{-2+b}{2}

\Rightarrow\ -8=8+a\ \ ,\ \ 12=-2+b   [Multiplying 2 on both sides]

\Rightarrow\ a=-8-8=-16\ \ ,\ \ b=12+2=14

Hence, the coordinates of point N = (-16, 14)

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