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alina1380 [7]
3 years ago
14

Need some help on geometry practice problems!

Mathematics
2 answers:
Ket [755]3 years ago
7 0
A(-1, 2)  and B(7, 3)

x_m= \cfrac{x_a+x_b}{2}= \cfrac{-1+7}{2}= \cfrac{6}{2}=3 \\  \\  y_m= \cfrac{y_a+y_b}{2}= \cfrac{2+3}{2}= \cfrac{5}{2} \\  \\ \text{midpoint is} \ (3,  \frac{5}{2} )
Ksenya-84 [330]3 years ago
4 0
\bf \textit{middle point of 2 points }\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ -1}}\quad ,&{{2}})\quad 
%  (c,d)
&({{ 7}}\quad ,&{{ 3}})
\end{array}\qquad
%   coordinates of midpoint 
\left(\cfrac{{{ x_2}} + {{ x_1}}}{2}\quad ,\quad \cfrac{{{ y_2}} + {{ y_1}}}{2} \right)
\\\\\\
\left(\cfrac{{{ 7-1}} }{2}\quad ,\quad \cfrac{3+2}{2} \right)
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