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Open Middle: Parallel and Perpendicular Lines

[size=150]Creation of this resource was inspired by this [url=https://www.openmiddle.com/]Open Middle[/url] problem submitted by [url=https://banderson02.wordpress.com/2017/10/24/parallel-and-perpendicular-lines-open-middle-problem/]Bryan Anderson[/url]. [/size]
Creation of this resource was inspired by this Open Middle problem submitted by Bryan Anderson.

Try to create a pair of parallel lines here so that no coordinate repeats!

Create another pair of parallel lines in this app here: Make sure the slopes of these lines are different from the slopes of the lines above.

Try to create a pair of PERPENDICULAR LINES here so that no coordinate repeats!

Can you create another set of perpendicular lines here (different from the ones you just made)? Make sure the slopes of these lines are entirely different from the slopes of your lines in the app immediately above.