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# Parallel, perpendicular, and neither lines

## on Nov 05, 2011

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## Parallel, perpendicular, and neither linesPresentation Transcript

• Math team think-tac-toeBy: Nathan Solomon
• ParallelFirst, you will need to find the slope of one line. To find the slope figure outthe distance it takes line takes to reach one (as a coordinate) on the x-axis.To find this put the number of squares up on the y-axis over one (one on x-axis).Second, you repeat the first step with the other lineThird, to see if they are parallel your slope will be the exact same.
• PerpendicularFirst, you need to fond the slope of one line. To find the slope figure out thedistance it takes line takes to reach one (as a coordinate) on the x-axis. Tofind this put the number of squares up on the y-axis over one (one on x-axis).Second, repeat step one with the other line.Third, if the slopes are opposite of each other (one is negative and the otheris not) then they are perpendicular (y-intercept does not matter becauseonly the slope matters.
• NeitherFirst, look at the lines if they are obviously not parallel or perpendicular thenthey are neither.Second, if step one does not determine it then find the slopes and determineif the lines are not parallel or perpendicular.