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Sergeeva-Olga [200]
3 years ago
13

A line segment has a midpoint of (7, 1/2) If one endpoint is (5,3), what is the other endpoint?

Mathematics
2 answers:
Darina [25.2K]3 years ago
7 0

Answer:

\textbf{The co-ordinates of the other end point: $(x_2,y_2) = (9,-2)$}

Step-by-step explanation:

The Mid point(M) of $(x_1,y_1)$and $(x_2,y_2)$is given as $$M = \left( \frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2} \right )$$\\Call $(5,3)$as$(x_1,y_1)$and the other end point that is to be determined as $(x_2,y_2)$\\Now, from the mid point formula we have, $$7 = \frac{5 + x_2}{2} \hspace{5mm}, \hspace{5mm} \frac{1}{2} = \frac{3 + y_2}{2}$$On Simplyfying, We have \textbf{$(x_2,y_2) = (9,-2)$}

Tanya [424]3 years ago
5 0
So if 7 is the middle x-value, you calculate how far it is from the given endpoint in order to determine how far it is from the other endpoint. So,

7 -5 =2, so the other endpoint must be 2 away from 7 in the opposite direction, 7+2=9

Then repeat with y,

3-1/2=5/2, therefore 1/2 - 5/2 = -4/2= -2

So the point is (9, -2)
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