Mathematics: [geometry basics] i m just checking if this is correct: ~ endpoint: (-9, -1), midpoint: (8,14) answer i got: (25, 31) ~ endpoint: (10,12), midpoint: (6,9): (2,6) i will give you brainiest if it s correct : ) and 20 pts.

[geometry basics] i m just checking if this is

Ответ:

ziaa9690

13.03.2022

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points }
\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ x &,& y~) 
% (c,d)
&&(~ -9 &,& -1~)
\end{array}\qquad
% coordinates of midpoint 
\left(\cfrac{ x_2 + x_1}{2}\quad ,\quad \cfrac{ y_2 + y_1}{2} \right)
\\\\\\
\left( \cfrac{-9+x}{2}~~,~~\cfrac{-1+y}{2} \right)=\stackrel{midpoint}{(8,14)}\implies 
\begin{cases}
\cfrac{-9+x}{2}=8\\\\
-9+x=16\\
\boxed{x=25}\\
-------\\
\cfrac{-1+y}{2} =14\\\\
-1+y=28\\
\boxed{y=29}
\end{cases}$

$\bf -------------------------------\\\\
\begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ x &,& y~) 
% (c,d)
&&(~10 &,& 12~)
\end{array}\qquad
\\\\\\
\left( \cfrac{10+x}{2}~~,~~\cfrac{12+y}{2} \right)=\stackrel{midpoint}{(6,9)}\implies 
\begin{cases}
\cfrac{10+x}{2}=6\\\\
10+x=12\\
\boxed{x=2}\\
-------\\
\cfrac{12+y}{2} =9\\\\
12+y=18\\
\boxed{y=6}
\end{cases}$

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Ответ:

bheam12

08.01.2022

Mathematics

Step-by-step explanation:

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[geometry basics] i'm just checking if this is correct: ~ endpoint: (-9, -1), midpoint: (8,14) answer i got: (25, 31) ~ endpoint: (10,12), midpoint: (6,9): (2,6) i will give you brainiest if it's correct : ) and 20 pts.

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