math week 6 day 5 - not. This can be done in two formats...

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To be able to tell if two lines are perpendicular you must first work out each equation to find out if they have the same slope. In addition to the same slope you must figure if they are going the same direction or
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Unformatted text preview: not. This can be done in two formats one is the y2-y1/x2-x1= or the other is y=X (-x1)....
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