Mathematics, 07.08.2019 01:10 jetblackcap
determine if the lines that pass through the given points are parallel, perpendicular or neither. line a: (5, 10) and (12, 6) line b: (-2, 4) and (5, 8)
Answers: 3
![\bf slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{6-10}{12-5}\implies \stackrel{\textit{Line A}}{\boxed{\cfrac{-4}{7}}} \\\\[-0.35em] ~\dotfill\\\\ (\stackrel{x_1}{-2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{5}~,~\stackrel{y_2}{8}) \\\\\\ slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{8-4}{5-(-2)}\implies \cfrac{4}{5+2}\implies \stackrel{\textit{Line B}}{\boxed{\cfrac{4}{7}}}](/tpl/images/0172/5072/768d7.png)
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