Identifying Perpendicular and Parallel Lines

Unknown Grade45 min

Learning Objective

I can identify parallel lines by recognizing that they have the same slope in their equations.

Lesson Flow

Watch Video

5 min

Identifying parallel and perpendicular lines | Geometry | Khan Academy

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Practice

14 min

5 questions • Short answer

Exit Ticket

5 min

Given the equations of two lines, y = 3x + 2 and y = 3x - 4, explain whether these lines are parallel or not and justify your answer. Given the equations of two lines, y = -5x + 1 and y = -5x + 7, explain whether these lines are parallel or not and justify your answer.

Teacher Guide

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  • Answer keys for all questions
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