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The midpoint of CD is M=(-2,0) . One endpoint is C=(-8, -4) .Find the coordinates of the other endpoint D.

User Tallandtree
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1 Answer

16 votes
16 votes
Answer:

The coordinate of the other endpoint is D = (4, 4)

Step-by-step explanation:

The midpoint of a line is given as a:


((x_1+x_2)/(2),(y_1+y_2)/(2))_{}

Using these, we have:


\begin{gathered} \frac{-8_{}+x_2}{2}=-2 \\ \\ -8+x_2=-4 \\ x_2=8-4=4 \end{gathered}

Similarly, we have:


\begin{gathered} (-4+y_2)/(2)=0 \\ \\ -4+y_2=0 \\ y_2=4 \end{gathered}

The coordinate of the other endpoint is D = (4, 4)

User Rgroli
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