Mathematics, 08.09.2019 02:10, alexkrol10
The coordinates of point t are (0,4). the midpoint of line st is (2,-5). find coordinates of as
Answers: 1
![\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ S(\stackrel{x_1}{x}~,~\stackrel{y_1}{y})\qquad T(\stackrel{x_2}{0}~,~\stackrel{y_2}{4}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left( \cfrac{0+x}{2}~~,~~\cfrac{4+y}{2} \right)~~=~~\stackrel{midpoint}{(2~,~-5)}\implies \begin{cases} \cfrac{0+x}{2}=2\\[1em] \boxed{x=4}\\ \cline{1-1} \cfrac{4+y}{2}=-5\\[1em] 4+y=-10\\ \boxed{y=-14} \end{cases}](/tpl/images/0225/3553/92ea9.png)
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The coordinates of point t are (0,4). the midpoint of line st is (2,-5). find coordinates of as...
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