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if the other midpoint of a line segment is (3,5) and one endpoint is (-1,-2), what is the other endpoint?

User MackM
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1 Answer

4 votes

the midpoint of the line is (3,5)

one endpoint is (-1, -2)

now for another point,

let the other point is (x, y)

so by midpoint formula,


3=(-1+x)/(2)
\begin{gathered} 6=-1+x \\ x=6+1 \\ x=7 \end{gathered}

and


\begin{gathered} 5=(-2+y)/(2) \\ 10=-2+y \\ y=10+2 \\ y=12 \end{gathered}

thus, the other point is (7,12)

User Rafael Rocha
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