Mathematics, 27.06.2019 23:30 kkingstone7062
Dis the midpoint of ce. e has coordinates (−8, −3), and d has coordinates (2, 3). find the coordinates of c.
Answers: 1
![\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ C(\stackrel{x_1}{x}~,~\stackrel{y_1}{y})\qquad E(\stackrel{x_2}{-8}~,~\stackrel{y_2}{-3}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left( \cfrac{-8+x}{2}~~,~~\cfrac{-3+y}{2} \right)=\stackrel{\stackrel{midpoint}{D}}{(2,3)}\implies \begin{cases} \cfrac{-8+x}{2}=2\\[1em] -8+x=4\\ \boxed{x=12}\\[-0.5em] \hrulefill\\ \cfrac{-3+y}{2}=3\\[1em] -3+y=6\\ \boxed{y=9} \end{cases}](/tpl/images/0025/1093/5cffb.png)
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Dis the midpoint of ce. e has coordinates (−8, −3), and d has coordinates (2, 3). find the coordinat...
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