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Blizzard [7]
1 year ago
9

Point B is the midpoint of the line segment ACIf A = (9, 2) and B = (4, -4), where is C?

Mathematics
1 answer:
kow [346]1 year ago
7 0

You have that A = (9,2), B = (4,-4)

In order to find the coordinates of C, a point at the middle of the segment AC, you calculate the midpoint of each couple of coordinates.

For the first coordinate:

\frac{9+4}{2}=\frac{13}{2}=6.5

For the second coordinate:

\frac{2-4}{2}=\frac{-2}{2}=-1

Hence, the coordinate of C is C = (6.5 , -1)

For the case of the points (4a,5g) and (-6a,-g), you have:

\begin{gathered} \frac{4a-6a}{2}=\frac{-2a}{2}=-a \\ \frac{5g-g}{2}=\frac{4g}{2}=2g \end{gathered}

Hence, the midpoint is (-a,2g)

\frac{5g-g}{2}=\frac{4g}{2}=2g

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