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Alex777 [14]
1 year ago
11

The coordinates of the midpoint of MN are (4,1). The coordinates of point M are (-2,5).What are the coordinates of point N?

Mathematics
1 answer:
Ilya [14]1 year ago
8 0

The Solution:

Step 1: The given data

The coordinates of the midpoint of MN is (4,1)

The coordinates of point of M is (-2,5)

The coordinates of point of N is (x,y)

Step 2:

The formula for calculating Midpoint coordinates is given below:

\text{Midpoint of MN=(}\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})=(4,1)

In this case,

\begin{gathered} x_1=-2,y_1=5 \\ x_2=x,y_2=y \end{gathered}

Substituting these values in the formula above, we get

\begin{gathered} 4\text{=}\frac{-2_{}+x_{}}{2} \\ \text{cross multiplying, we get} \\ -2+x=4\times2 \end{gathered}\begin{gathered} -2+x=8 \\ x=8+2=10 \end{gathered}

Similarly,

\begin{gathered} 1\text{=}\frac{5_{}+y_{}}{2} \\ \text{cross multiplying, we get} \\ 5+y=2\times1 \end{gathered}y=2-5=-3

Hence, the coordinates of point N is (10,-3)

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Step-by-step explanation:

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WE KNKW THAT A(2,–8) AND THE MID POINT IS (3,3)

SUBSTITUTING INTO THE EQUATION ABOVE

(3,3) = [(2+ X2)/2 ,(–8+ Y2)/2]

EQUATING THE X COORDINATES

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6 = –8 +Y2

=> Y(subscript 2)= 14

THEREFORE THE COORDINATES OF B ARE (4 ,14)

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