This discovery activity guides students to graph pairs of lines and observe patterns in equations of parallel and perpendicular lines. They notice that parallel lines have the same slope and perpendicular lines have slopes that are opposite reciprocals.
If you like the inquiry-based style, try these other discovery activities:
For more practice on the same concept, try:
Task Cards: Slopes of Parallel and Perpendicular Lines
Parallel, Perpendicular, or Neither Card Sort
Algebra 1 Super Bundle
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